Console

java.lang.Object
- hsa.Console

All Implemented Interfaces:

java.awt.event.ActionListener, java.awt.event.FocusListener, java.awt.event.KeyListener, java.awt.event.WindowListener, java.util.EventListener
```
public class Console
extends java.lang.Object
```

Field Summary

Fields
Modifier and Type	Field and Description
`protected int`	`actualCol`
`protected int`	`actualRow`
`protected static int`	`BUFFER_SIZE`
`protected boolean`	`clearToEOL`
`protected java.awt.Panel`	`consoleCanvasPanelInner`
`protected int`	`currentCol` Console text variables
`protected int`	`currentRow` Console text variables
`protected static int`	`DEFAULT_COLUMNS`
`protected static int`	`DEFAULT_FONT_SIZE`
`protected static int`	`DEFAULT_ROWS`
`protected static java.lang.String`	`DEFAULT_TITLE`
`protected boolean`	`echoOn`
`protected static int`	`EMPTY_BUFFER`
`protected boolean`	`eofReached`
`protected java.awt.Font`	`font`
`protected hsa.ConsoleCanvasGraphics`	`graphicsCanvas`
`protected java.awt.Color`	`graphicsColor` Console graphics variables
`protected char[]`	`kbdBuffer`
`protected int`	`kbdBufferHead`
`protected int`	`kbdBufferTail`
`protected char[]`	`lineBuffer`
`protected int`	`lineBufferHead`
`protected int`	`lineBufferTail`
`protected static boolean`	`mainReturned`
`protected int`	`maxCol`
`protected int`	`maxRow`
`protected static java.lang.String`	`PRINT_COMMAND`
`protected static java.lang.String`	`QUIT_COMMAND`
`protected static java.lang.String`	`SAVE_COMMAND`
`protected int`	`startCol`
`protected int`	`startRow`
`protected static int`	`TAB_SIZE`
`protected java.awt.Color`	`textBGColor`
`protected java.awt.Color`	`textColor`
`protected int`	`ungotChar`
`protected hsa.ConsoleFrame`	`window`

Constructor Summary

Constructors
Constructor and Description
`Console()` Creates a console using the default values of: 25x80 screen, 14 pt font, "Console" as title.
`Console(int fontSize)` Creates a console using the default values of: 25x80 screen, "Console" as title.
`Console(int rows, int columns)` Creates a console using the default values of: 14 pt font, "Console" as title.
`Console(int rows, int columns, int fontSize)` Creates a console using the default values of: "Console" as title.
`Console(int rows, int columns, int fontSize, java.lang.String title)` Creates a console.
`Console(int rows, int columns, java.lang.String title)` Creates a console using the default values of: 14 pt font.
`Console(int fontSize, java.lang.String title)` Creates a console using the default values of: 25x80 screen.
`Console(java.lang.String title)` Creates a console using the default values of: 25x80 screen, 14 pt font.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`actionPerformed(java.awt.event.ActionEvent e)` Quits the program, saves the contents of the window, or prints the contents of the window, depending on which button is pressed.
`void`	`clear()` Clears the screen and moves the cursor to the top left corner.
`void`	`clearRect(int x, int y, int width, int height)` Clears a rectangle in the console to white.
`void`	`close()` Closes the console window.
`void`	`copyArea(int x, int y, int width, int height, int delta_x, int delta_y)` Copies an area of the screen from (x, y) to (x + width, y + height) onto the screen with top corner at (x + delta_x, y + delta_y).
`void`	`draw3DRect(int x, int y, int width, int height, boolean raised)` Draws a 3D rectangle on the screen from (x, y) to (x + width, y + width).
`void`	`drawArc(int x, int y, int width, int height, int startAngle, int arcAngle)` Draws an arc on the screen from (x, y) to (x + width, y + height) from startAngle to startAngle + arcAngle in specified colour.
`void`	`drawImage(java.awt.Image img, int x, int y, java.awt.image.ImageObserver obs)` Draws an image on the screen at (x, y).
`void`	`drawLine(int x1, int y1, int x2, int y2)` Draws a line on the screen from (x1, y1) to (x2, y2).
`void`	`drawMapleLeaf(int x, int y, int width, int height)` Draws a maple leaf on the screen from (x, y) to (x + width, y + width).
`void`	`drawOval(int x, int y, int width, int height)` Draws an oval on the screen in the sqaure from (x, y) to (x + width, y + height).
`void`	`drawPolygon(int[] xPoints, int[] yPoints, int nPoints)` Draws a polygon specified by the arrays of points.
`void`	`drawRect(int x, int y, int width, int height)` Draws a rectangle on the screen from (x, y) to (x + width, y + width).
`void`	`drawRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)` Draws a rounded rectangle on the screen from (x, y) to (x + width, y + width).
`void`	`drawStar(int x, int y, int width, int height)` Draws a star on the screen from (x, y) to (x + width, y + width).
`void`	`drawString(java.lang.String str, int x, int y)` Draws a text on the screen at location (x, y).
`protected void`	`enableButtons(boolean enable)` Enables or disables all the buttons in the Console.
`protected void`	`eraseLineOfInput()` Erases the entire line of input.
`protected void`	`erasePreviousChar()` Erases the previous character in a line of input.
`void`	`fill3DRect(int x, int y, int width, int height, boolean raised)` Draws a filled 3D rectangle on the screen from (x, y) to (x + width, y + width).
`void`	`fillArc(int x, int y, int width, int height, int startAngle, int arcAngle)` Draws a filled arc on the screen from (x, y) to (x + width, y + height) from startAngle to startAngle + arcAngle in specified colour.
`void`	`fillMapleLeaf(int x, int y, int width, int height)` Draws a filled maple leaf on the screen from (x, y) to (x + width, y + width).
`void`	`fillOval(int x, int y, int width, int height)` Draws a filled oval on the screen in the sqaure from (x, y) to (x + width, y + height).
`void`	`fillPolygon(int[] xPoints, int[] yPoints, int nPoints)` Draws a filled polygon specified by the arrays of points..
`void`	`fillRect(int x, int y, int width, int height)` Draws a filled rectangle on the screen from (x, y) to (x + width, y + width).
`void`	`fillRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)` Draws a filled rounded rectangle on the screen from (x, y) to (x + width, y + width).
`void`	`fillStar(int x, int y, int width, int height)` Draws a filled star on the screen from (x, y) to (x + width, y + width).
`void`	`focusGained(java.awt.event.FocusEvent e)` Sets the focus to the invisible button and then the console canvas.
`void`	`focusLost(java.awt.event.FocusEvent e)` Does nothing.
`char`	`getChar()` Returns the next character entered on the keyboard.
`int`	`getColumn()` Returns the current column number of the cursor.
`int`	`getHeight()` Returns the height of the console drawing surface in pixels.
`int`	`getMaxColumns()` Returns the number of columns in the console window.
`int`	`getMaxRows()` Returns the number of rows in the console window.
`int`	`getRow()` Returns the current row number of the cursor.
`int`	`getWidth()` Returns the width of the console drawing surface in pixels.
`protected void`	`initialize(int rows, int columns, int fontSize, java.lang.String title)` Initializes the window.
`boolean`	`isCharAvail()` Returns whether a character is available in the keyboard buffer.
`void`	`keyPressed(java.awt.event.KeyEvent e)` Places a keystroke in the keyboard buffer.
`void`	`keyReleased(java.awt.event.KeyEvent e)` Does nothing.
`void`	`keyTyped(java.awt.event.KeyEvent e)` Does nothing.
`static void`	`mainReturned()`
`protected void`	`mainStopped()` This method is invoked if the "main" method appears to have stopped executing.
`int`	`maxcol()` Returns the number of columns in the console window.
`int`	`maxrow()` Returns the number of rows in the console window.
`int`	`maxx()` Returns the maximum x coordinate of the console window in pixels.
`int`	`maxy()` Returns the maximum y coordinate of the console window in pixels.
`void`	`print(boolean value)` Writes the text representation of a boolean to the Console.
`void`	`print(boolean value, int fieldSize)` Writes the text representation of a boolean to the Console with a specified field size.
`void`	`print(byte number)` Writes the text representation of an 8-bit integer (a "byte") to the Console.
`void`	`print(byte number, int fieldSize)` Writes the text representation of an 8-bit integer (a "byte") to the Console with a specified field size.
`void`	`print(char ch)` Writes a character to the Console.
`void`	`print(char ch, int fieldSize)` Writes a character to the Console with a specified field size..
`void`	`print(double number)` Writes a double precision floating point number (a "double") to the Console.
`void`	`print(double number, int fieldSize)` Writes a double precision floating point number (a "double") to the Console with a specified field size.
`void`	`print(double number, int fieldSize, int decimalPlaces)` Writes a double precision floating point number (a "double") to the Console with a specified field size and a specified number of decimal places.
`void`	`print(float number)` Writes a floating point number (a "float") to the Console.
`void`	`print(float number, int fieldSize)` Writes a floating point number (a "float") to the Console with a specified field size.
`void`	`print(float number, int fieldSize, int decimalPlaces)` Writes a floating point number (a "double") to the Console with a specified field size and a specified number of decimal places.
`void`	`print(int number)` Writes the text representation of an 32-bit integer (an "int") to the Console.
`void`	`print(int number, int fieldSize)` Writes the text representation of an 32-bit integer (an "int") to the Console with a specified field size.
`void`	`print(long number)` Writes the text representation of an 64-bit integer (a "long") to the Console.
`void`	`print(long number, int fieldSize)` Writes the text representation of an 64-bit integer (a "long") to the Console with a specified field size.
`void`	`print(short number)` Writes the text representation of an 16-bit integer (a "short") to the Console.
`void`	`print(short number, int fieldSize)` Writes the text representation of an 16-bit integer (a "short") to the Console with a specified field size.
`void`	`print(java.lang.String text)` Write a string to the Console.
`void`	`print(java.lang.String text, int fieldSize)` Writes a string to the Console with a specified field size..
`void`	`println()` Writes a newline to the Console.
`void`	`println(boolean value)` Writes the text representation of a boolean to the Console followed by a newline.
`void`	`println(boolean value, int fieldSize)` Writes the text representation of a boolean to the Console with a specified field size followed by a newline.
`void`	`println(byte number)` Writes the text representation of an 8-bit integer (a "byte") to the Console followed by a newline.
`void`	`println(byte number, int fieldSize)` Writes the text representation of an 8-bit integer (a "byte") to the Console with a specified field size followed by a newline.
`void`	`println(char ch)` Writes a character to the Console followed by a newline.
`void`	`println(char ch, int fieldSize)` Writes a character to the Console with a specified field size..
`void`	`println(double number)` Writes a double precision floating point number (a "double") to the Console followed by a newline.
`void`	`println(double number, int fieldSize)` Writes a double precision floating point number (a "double") to the Console with a specified field size followed by a newline.
`void`	`println(double number, int fieldSize, int decimalPlaces)` Writes a double precision floating point number (a "double") to the Console with a specified field size and a specified number of decimal places followed by a newline.
`void`	`println(float number)` Writes a floating point number (a "float") to the Console followed by a newline.
`void`	`println(float number, int fieldSize)` Writes a floating point number (a "float") to the Console with a specified field size followed by a newline.
`void`	`println(float number, int fieldSize, int decimalPlaces)` Writes a floating point number (a "double") to the Console with a specified field size and a specified number of decimal places followed by a newline.
`void`	`println(int number)` Writes the text representation of an 32-bit integer (an "int") to the Console followed by a newline.
`void`	`println(int number, int fieldSize)` Writes the text representation of an 32-bit integer (an "int") to the Console with a specified field size followed by a newline.
`void`	`println(long number)` Writes the text representation of an 64-bit integer (a "long") to the Console followed by a newline.
`void`	`println(long number, int fieldSize)` Writes the text representation of an 64-bit integer (a "long") to the Console with a specified field size followed by a newline.
`void`	`println(short number)` Writes the text representation of an 16-bit integer (a "short") to the Console followed by a newline.
`void`	`println(short number, int fieldSize)` Writes the text representation of an 16-bit integer (a "short") to the Console with a specified field size followed by a newline.
`void`	`println(java.lang.String text)` Writes a string to the Console followed by a newline.
`void`	`println(java.lang.String text, int fieldSize)` Writes a string to the Console with a specified field size followed by a newline.
`protected void`	`quitProgram()` Hides the window and quits the program.
`boolean`	`readBoolean()` Reads a boolean from the Console.
`byte`	`readByte()` Reads an 8-bit integer (a "byte") from the Console.
`char`	`readChar()` Reads a single character from the Console.
`double`	`readDouble()` Reads a double precision floating point number (a "double") from the Console.
`float`	`readFloat()` Reads a floating point number (a "float") from the Console.
`int`	`readInt()` Reads a 32-bit integer (an "int") from the Console.
`java.lang.String`	`readLine()` Reads a full line of text from the Console.
`long`	`readLong()` Reads a 64-bit integer (a "long") from the Console.
`short`	`readShort()` Reads a 16-bit integer (a "short") from the Console.
`java.lang.String`	`readString()` Reads a whitespace delimited token from the Console.
`protected java.lang.String`	`readToken()` Reads in input from the keyboard buffer until it hits a whitespace, which indicates the end of a token.
`void`	`setColor(java.awt.Color color)` Sets the foreground color for any graphics.
`void`	`setColour(java.awt.Color colour)` Sets the foreground colour for any graphics.
`void`	`setCursor(int row, int column)` Moves the cursor to the specified row and column.
`void`	`setCursorVisible(boolean visible)` Makes the blinking cursor visible or invisible.
`void`	`setFont(java.awt.Font font)` Sets the font for the drawString method.
`void`	`setPaintMode()` Sets the drawing mode for any graphics to "Paint".
`void`	`setTextBackgroundColor(java.awt.Color color)` Sets the background color for any text.
`void`	`setTextBackgroundColour(java.awt.Color colour)` Sets the background color for any text.
`void`	`setTextColor(java.awt.Color color)` Sets the foreground color for any text.
`void`	`setTextColour(java.awt.Color colour)` Sets the foreground colour for any text.
`protected void`	`setWindowTitle(java.lang.String s)` Sets the window title.
`void`	`setXORMode(java.awt.Color xorColor)` Sets the drawing mode for any graphics to "XOR".
`void`	`windowActivated(java.awt.event.WindowEvent e)` Does nothing.
`void`	`windowClosed(java.awt.event.WindowEvent e)` Does nothing.
`void`	`windowClosing(java.awt.event.WindowEvent e)` Quits the program.
`void`	`windowDeactivated(java.awt.event.WindowEvent e)` Does nothing.
`void`	`windowDeiconified(java.awt.event.WindowEvent e)` Does nothing.
`void`	`windowIconified(java.awt.event.WindowEvent e)` Does nothing.
`void`	`windowOpened(java.awt.event.WindowEvent e)` Does nothing.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - currentRow
```
protected int currentRow
```
    Console text variables
  - currentCol
```
protected int currentCol
```
    Console text variables
  - actualRow
```
protected int actualRow
```
  - actualCol
```
protected int actualCol
```
  - startCol
```
protected int startCol
```
  - startRow
```
protected int startRow
```
  - textColor
```
protected java.awt.Color textColor
```
  - textBGColor
```
protected java.awt.Color textBGColor
```
  - echoOn
```
protected boolean echoOn
```
  - clearToEOL
```
protected boolean clearToEOL
```
  - graphicsColor
```
protected java.awt.Color graphicsColor
```
    Console graphics variables
  - font
```
protected java.awt.Font font
```
  - graphicsCanvas
```
protected hsa.ConsoleCanvasGraphics graphicsCanvas
```
  - mainReturned
```
protected static boolean mainReturned
```
  - SAVE_COMMAND
```
protected static final java.lang.String SAVE_COMMAND
```
    See Also:
    
    Constant Field Values
  - PRINT_COMMAND
```
protected static final java.lang.String PRINT_COMMAND
```
    See Also:
    
    Constant Field Values
  - QUIT_COMMAND
```
protected static final java.lang.String QUIT_COMMAND
```
    See Also:
    
    Constant Field Values
  - DEFAULT_ROWS
```
protected static final int DEFAULT_ROWS
```
    See Also:
    
    Constant Field Values
  - DEFAULT_COLUMNS
```
protected static final int DEFAULT_COLUMNS
```
    See Also:
    
    Constant Field Values
  - DEFAULT_FONT_SIZE
```
protected static final int DEFAULT_FONT_SIZE
```
    See Also:
    
    Constant Field Values
  - DEFAULT_TITLE
```
protected static final java.lang.String DEFAULT_TITLE
```
    See Also:
    
    Constant Field Values
  - TAB_SIZE
```
protected static final int TAB_SIZE
```
    See Also:
    
    Constant Field Values
  - window
```
protected hsa.ConsoleFrame window
```
  - maxRow
```
protected int maxRow
```
  - maxCol
```
protected int maxCol
```
  - BUFFER_SIZE
```
protected static final int BUFFER_SIZE
```
    See Also:
    
    Constant Field Values
  - EMPTY_BUFFER
```
protected static final int EMPTY_BUFFER
```
    See Also:
    
    Constant Field Values
  - kbdBuffer
```
protected char[] kbdBuffer
```
  - kbdBufferHead
```
protected int kbdBufferHead
```
  - kbdBufferTail
```
protected int kbdBufferTail
```
  - lineBuffer
```
protected char[] lineBuffer
```
  - lineBufferHead
```
protected int lineBufferHead
```
  - lineBufferTail
```
protected int lineBufferTail
```
  - ungotChar
```
protected int ungotChar
```
  - consoleCanvasPanelInner
```
protected java.awt.Panel consoleCanvasPanelInner
```
  - eofReached
```
protected boolean eofReached
```
- Constructor Detail
  - Console
```
public Console()
```
    Creates a console using the default values of: 25x80 screen, 14 pt font, "Console" as title.
  - Console
```
public Console(int fontSize)
```
    Creates a console using the default values of: 25x80 screen, "Console" as title.
    
    Parameters:
    
    fontSize - The size of the font to be used in the Console window
  - Console
```
public Console(int rows,
               int columns)
```
    Creates a console using the default values of: 14 pt font, "Console" as title.
    
    Parameters:
    
    rows - The height of the window in rows
    
    columns - The width of the window in columns
  - Console
```
public Console(int rows,
               int columns,
               int fontSize)
```
    Creates a console using the default values of: "Console" as title.
    
    Parameters:
    
    rows - The height of the window in rows
    
    columns - The width of the window in columns
    
    fontSize - The size of the font to be used in the Console window
  - Console
```
public Console(int rows,
               int columns,
               int fontSize,
               java.lang.String title)
```
    Creates a console.
    
    Parameters:
    
    rows - The height of the window in rows
    
    columns - The width of the window in columns
    
    fontSize - The size of the font to be used in the Console window
    
    title - The title of the Console window
  - Console
```
public Console(int rows,
               int columns,
               java.lang.String title)
```
    Creates a console using the default values of: 14 pt font.
    
    Parameters:
    
    rows - The height of the window in rows
    
    columns - The width of the window in columns
    
    title - The title of the Console window
  - Console
```
public Console(int fontSize,
               java.lang.String title)
```
    Creates a console using the default values of: 25x80 screen.
    
    Parameters:
    
    fontSize - The size of the font to be used in the Console window.
    
    title - The title of the Console window.
  - Console
```
public Console(java.lang.String title)
```
    Creates a console using the default values of: 25x80 screen, 14 pt font.
    
    Parameters:
    
    title - The title of the Console window
- Method Detail
  - clear
```
public void clear()
```
    Clears the screen and moves the cursor to the top left corner.
  - clearRect
```
public void clearRect(int x,
                      int y,
                      int width,
                      int height)
```
    Clears a rectangle in the console to white.
    
    See Also:
    
    java.awt.Graphics.clearRect
  - copyArea
```
public void copyArea(int x,
                     int y,
                     int width,
                     int height,
                     int delta_x,
                     int delta_y)
```
    Copies an area of the screen from (x, y) to (x + width, y + height) onto the screen with top corner at (x + delta_x, y + delta_y).
    
    See Also:
    
    java.awt.Graphics.copyArea
  - draw3DRect
```
public void draw3DRect(int x,
                       int y,
                       int width,
                       int height,
                       boolean raised)
```
    Draws a 3D rectangle on the screen from (x, y) to (x + width, y + width).
    
    See Also:
    
    java.awt.Graphics.draw3DRect
  - drawArc
```
public void drawArc(int x,
                    int y,
                    int width,
                    int height,
                    int startAngle,
                    int arcAngle)
```
    Draws an arc on the screen from (x, y) to (x + width, y + height) from startAngle to startAngle + arcAngle in specified colour.
    
    See Also:
    
    java.awt.Graphics.drawArc
  - drawImage
```
public void drawImage(java.awt.Image img,
                      int x,
                      int y,
                      java.awt.image.ImageObserver obs)
```
    Draws an image on the screen at (x, y).
    
    See Also:
    
    java.awt.Graphics.drawImage
  - drawLine
```
public void drawLine(int x1,
                     int y1,
                     int x2,
                     int y2)
```
    Draws a line on the screen from (x1, y1) to (x2, y2).
    
    See Also:
    
    java.awt.Graphics.drawLine
  - drawMapleLeaf
```
public void drawMapleLeaf(int x,
                          int y,
                          int width,
                          int height)
```
    Draws a maple leaf on the screen from (x, y) to (x + width, y + width).
    
    Parameters:
    
    x - The x coordinate of the top left corner of the rectangle that the maple leaf is inscribed in.
    
    y - The y coordinate of the top left corner of the rectangle that the maple leaf is inscribed in.
    
    width - The width of the rectangle that the maple leaf is inscribed in.
    
    height - The height of the rectangle that the maple leaf is inscribed in.
  - drawOval
```
public void drawOval(int x,
                     int y,
                     int width,
                     int height)
```
    Draws an oval on the screen in the sqaure from (x, y) to (x + width, y + height).
    
    See Also:
    
    java.awt.Graphics.drawOval
  - drawPolygon
```
public void drawPolygon(int[] xPoints,
                        int[] yPoints,
                        int nPoints)
```
    Draws a polygon specified by the arrays of points.
    
    See Also:
    
    java.awt.Graphics.drawPolygon
  - drawRect
```
public void drawRect(int x,
                     int y,
                     int width,
                     int height)
```
    Draws a rectangle on the screen from (x, y) to (x + width, y + width).
    
    See Also:
    
    java.awt.Graphics.drawRect
  - drawRoundRect
```
public void drawRoundRect(int x,
                          int y,
                          int width,
                          int height,
                          int arcWidth,
                          int arcHeight)
```
    Draws a rounded rectangle on the screen from (x, y) to (x + width, y + width).
    
    See Also:
    
    java.awt.Graphics.drawRoundRect
  - drawStar
```
public void drawStar(int x,
                     int y,
                     int width,
                     int height)
```
    Draws a star on the screen from (x, y) to (x + width, y + width).
    
    Parameters:
    
    x - The x coordinate of the top left corner of the rectangle that the star is inscribed in.
    
    y - The y coordinate of the top left corner of the rectangle that the star is inscribed in.
    
    width - The width of the rectangle that the star is inscribed in.
    
    height - The height of the rectangle that the star is inscribed in.
  - drawString
```
public void drawString(java.lang.String str,
                       int x,
                       int y)
```
    Draws a text on the screen at location (x, y).
    
    See Also:
    
    java.awt.Graphics.drawString
  - eraseLineOfInput
```
protected void eraseLineOfInput()
```
    Erases the entire line of input. Called when the user presses Ctrl+U when typing.
  - erasePreviousChar
```
protected void erasePreviousChar()
```
    Erases the previous character in a line of input. Called when the user presses backspace when typing.
  - fill3DRect
```
public void fill3DRect(int x,
                       int y,
                       int width,
                       int height,
                       boolean raised)
```
    Draws a filled 3D rectangle on the screen from (x, y) to (x + width, y + width).
    
    See Also:
    
    java.awt.Graphics.fill3DRect
  - fillArc
```
public void fillArc(int x,
                    int y,
                    int width,
                    int height,
                    int startAngle,
                    int arcAngle)
```
    Draws a filled arc on the screen from (x, y) to (x + width, y + height) from startAngle to startAngle + arcAngle in specified colour.
    
    See Also:
    
    java.awt.Graphics.fillArc
  - fillMapleLeaf
```
public void fillMapleLeaf(int x,
                          int y,
                          int width,
                          int height)
```
    Draws a filled maple leaf on the screen from (x, y) to (x + width, y + width).
    
    Parameters:
    
    x - int The x coordinate of the top left corner of the rectangle that the maple leaf is inscribed in.
    
    y - int The y coordinate of the top left corner of the rectangle that the maple leaf is inscribed in.
    
    width - int The width of the rectangle that the maple leaf is inscribed in.
    
    height - int The height of the rectangle that the maple leaf is inscribed in.
  - fillOval
```
public void fillOval(int x,
                     int y,
                     int width,
                     int height)
```
    Draws a filled oval on the screen in the sqaure from (x, y) to (x + width, y + height).
    
    See Also:
    
    java.awt.Graphics.fillOval
  - fillPolygon
```
public void fillPolygon(int[] xPoints,
                        int[] yPoints,
                        int nPoints)
```
    Draws a filled polygon specified by the arrays of points..
    
    See Also:
    
    java.awt.Graphics.fillPolygon
  - fillRect
```
public void fillRect(int x,
                     int y,
                     int width,
                     int height)
```
    Draws a filled rectangle on the screen from (x, y) to (x + width, y + width).
    
    See Also:
    
    java.awt.Graphics.fillRect
  - fillRoundRect
```
public void fillRoundRect(int x,
                          int y,
                          int width,
                          int height,
                          int arcWidth,
                          int arcHeight)
```
    Draws a filled rounded rectangle on the screen from (x, y) to (x + width, y + width).
    
    See Also:
    
    java.awt.Graphics.fillRoundRect
  - fillStar
```
public void fillStar(int x,
                     int y,
                     int width,
                     int height)
```
    Draws a filled star on the screen from (x, y) to (x + width, y + width).
    
    Parameters:
    
    x - The x coordinate of the top left corner of the rectangle that the star is inscribed in.
    
    y - The y coordinate of the top left corner of the rectangle that the star is inscribed in.
    
    width - The width of the rectangle that the star is inscribed in.
    
    height - The height of the rectangle that the star is inscribed in.
  - isCharAvail
```
public boolean isCharAvail()
```
    Returns whether a character is available in the keyboard buffer. Ignores characters currently in the line buffer.
    
    Returns:
    
    true if a character is ready to be read with getChar
  - getChar
```
public char getChar()
```
    Returns the next character entered on the keyboard. Ignores characters currently in the line buffer.
    
    Returns:
    
    The next character entered on the keyboard.
  - getColumn
```
public int getColumn()
```
    Returns the current column number of the cursor.
    
    Returns:
    
    The current column number of the cursor.
  - getHeight
```
public int getHeight()
```
    Returns the height of the console drawing surface in pixels.
    
    Returns:
    
    The height of the console window in pixels.
  - getMaxColumns
```
public int getMaxColumns()
```
    Returns the number of columns in the console window.
    
    Returns:
    
    The width of the screen in columns.
  - getMaxRows
```
public int getMaxRows()
```
    Returns the number of rows in the console window.
    
    Returns:
    
    The height of the screen in rows.
  - getRow
```
public int getRow()
```
    Returns the current row number of the cursor.
    
    Returns:
    
    The current row number of the cursor.
  - getWidth
```
public int getWidth()
```
    Returns the width of the console drawing surface in pixels.
    
    Returns:
    
    The width of the console drawing surface in pixels.
  - maxcol
```
public int maxcol()
```
    Returns the number of columns in the console window.
    
    Returns:
    
    The width of the screen in columns.
  - maxrow
```
public int maxrow()
```
    Returns the number of rows in the console window.
    
    Returns:
    
    The height of the screen in rows.
  - maxx
```
public int maxx()
```
    Returns the maximum x coordinate of the console window in pixels. Available for compatibility with first printing of "Programming Concepts"
    
    Returns:
    
    The maximum x coordinate of the console window in pixels.
  - maxy
```
public int maxy()
```
    Returns the maximum y coordinate of the console window in pixels. Available for compatibility with first printing of "Programming Concepts"
    
    Returns:
    
    The maximum y coordinate the console window in pixels.
  - print
```
public void print(java.lang.String text)
```
    Write a string to the Console.
    
    Parameters:
    
    text - The string to be written to the Console
  - readChar
```
public char readChar()
```
    Reads a single character from the Console. Note that this discards any whitespace. If you want to get every character on the line, use the readLine () method.
    
    Returns:
    
    The character read from the Console
  - setColor
```
public void setColor(java.awt.Color color)
```
    Sets the foreground color for any graphics.
    
    See Also:
    
    java.awt.Graphics.setColor
  - setColour
```
public void setColour(java.awt.Color colour)
```
    Sets the foreground colour for any graphics.
    
    See Also:
    
    java.awt.Graphics.setColor
  - setCursor
```
public void setCursor(int row,
                      int column)
```
    Moves the cursor to the specified row and column.
    
    Parameters:
    
    row - The row to move the cursor to
    
    column - The column to move the cursor to
  - setCursorVisible
```
public void setCursorVisible(boolean visible)
```
    Makes the blinking cursor visible or invisible.
  - setFont
```
public void setFont(java.awt.Font font)
```
    Sets the font for the drawString method.
    
    See Also:
    
    java.awt.Graphics.setFont
  - setPaintMode
```
public void setPaintMode()
```
    Sets the drawing mode for any graphics to "Paint".
    
    See Also:
    
    java.awt.Graphics.setPaintMode
  - setTextBackgroundColor
```
public void setTextBackgroundColor(java.awt.Color color)
```
    Sets the background color for any text.
    
    Parameters:
    
    color - The color that text displayed by print and println methods will appear on.
  - setTextBackgroundColour
```
public void setTextBackgroundColour(java.awt.Color colour)
```
    Sets the background color for any text.
    
    Parameters:
    
    colour - The color that text displayed by print and println methods will appear on.
  - setTextColor
```
public void setTextColor(java.awt.Color color)
```
    Sets the foreground color for any text.
    
    Parameters:
    
    color - The color that text displayed by print and println methods will appear in.
  - setTextColour
```
public void setTextColour(java.awt.Color colour)
```
    Sets the foreground colour for any text.
    
    Parameters:
    
    colour - The color that text displayed by print and println methods will appear in.
  - setXORMode
```
public void setXORMode(java.awt.Color xorColor)
```
    Sets the drawing mode for any graphics to "XOR".
    
    See Also:
    
    java.awt.Graphics.setXORMode
  - mainReturned
```
public static void mainReturned()
```
  - initialize
```
protected void initialize(int rows,
                          int columns,
                          int fontSize,
                          java.lang.String title)
```
    Initializes the window. Not in the constructor because it needs certain elements that are not ready at construction time.
  - actionPerformed
```
public void actionPerformed(java.awt.event.ActionEvent e)
```
    Quits the program, saves the contents of the window, or prints the contents of the window, depending on which button is pressed. Called by the system when a button in the Console is pressed.
    
    Specified by:
    
    actionPerformed in interface java.awt.event.ActionListener
  - close
```
public void close()
```
    Closes the console window.
  - enableButtons
```
protected void enableButtons(boolean enable)
```
    Enables or disables all the buttons in the Console. Used while the contents of the window is being saved or printed.
  - focusGained
```
public void focusGained(java.awt.event.FocusEvent e)
```
    Sets the focus to the invisible button and then the console canvas. This is necessary as a work-around to a bug in VisualAge for Java, which gives buttons default focus that can only be removed by making another button a focus. Called by the system when the Console gains focus.
    
    Specified by:
    
    focusGained in interface java.awt.event.FocusListener
  - focusLost
```
public void focusLost(java.awt.event.FocusEvent e)
```
    Does nothing. Called by the system when the Console loses focus.
    
    Specified by:
    
    focusLost in interface java.awt.event.FocusListener
  - keyPressed
```
public void keyPressed(java.awt.event.KeyEvent e)
```
    Places a keystroke in the keyboard buffer. It is synchronized so that there can't be a problem with input being taken off the keyboard buffer and placed on the keyboard buffer at the same time.
    
    Specified by:
    
    keyPressed in interface java.awt.event.KeyListener
  - keyReleased
```
public void keyReleased(java.awt.event.KeyEvent e)
```
    Does nothing. Called by the system when a key is released.
    
    Specified by:
    
    keyReleased in interface java.awt.event.KeyListener
  - keyTyped
```
public void keyTyped(java.awt.event.KeyEvent e)
```
    Does nothing. Called by the system when a key is typed.
    
    Specified by:
    
    keyTyped in interface java.awt.event.KeyListener
  - mainStopped
```
protected void mainStopped()
```
    This method is invoked if the "main" method appears to have stopped executing. This helps the user realize when the program has finished execution.
  - print
```
public void print(byte number)
```
    Writes the text representation of an 8-bit integer (a "byte") to the Console.
    
    Parameters:
    
    number - The number to be written to the Console.
  - print
```
public void print(byte number,
                  int fieldSize)
```
    Writes the text representation of an 8-bit integer (a "byte") to the Console with a specified field size.
    
    Parameters:
    
    number - The number to be written to the Console.
    
    fieldSize - The field width that the number is to be written in.
  - print
```
public void print(char ch)
```
    Writes a character to the Console.
    
    Parameters:
    
    ch - The character to be written to the Console.
  - print
```
public void print(char ch,
                  int fieldSize)
```
    Writes a character to the Console with a specified field size..
    
    Parameters:
    
    ch - The character to be written to the Console.
    
    fieldSize - The field width that the character is to be written in.
  - print
```
public void print(double number)
```
    Writes a double precision floating point number (a "double") to the Console.
    
    Parameters:
    
    number - The number to be written to the Console.
  - print
```
public void print(double number,
                  int fieldSize)
```
    Writes a double precision floating point number (a "double") to the Console with a specified field size.
    
    Parameters:
    
    number - The number to be written to the Console.
    
    fieldSize - The field width that the number is to be written in.
  - print
```
public void print(double number,
                  int fieldSize,
                  int decimalPlaces)
```
    Writes a double precision floating point number (a "double") to the Console with a specified field size and a specified number of decimal places.
    
    Parameters:
    
    number - The number to be written to the Console.
    
    fieldSize - The field width that the number is to be written in.
    
    decimalPlaces - The number of decimal places of the number to be displayed.
  - print
```
public void print(float number)
```
    Writes a floating point number (a "float") to the Console.
    
    Parameters:
    
    number - The number to be written to the Console.
  - print
```
public void print(float number,
                  int fieldSize)
```
    Writes a floating point number (a "float") to the Console with a specified field size.
    
    Parameters:
    
    number - The number to be written to the Console.
    
    fieldSize - The field width that the number is to be written in.
  - print
```
public void print(float number,
                  int fieldSize,
                  int decimalPlaces)
```
    Writes a floating point number (a "double") to the Console with a specified field size and a specified number of decimal places.
    
    Parameters:
    
    number - The number to be written to the Console.
    
    fieldSize - The field width that the number is to be written in.
    
    decimalPlaces - The number of decimal places of the number to be displayed.
  - print
```
public void print(int number)
```
    Writes the text representation of an 32-bit integer (an "int") to the Console.
    
    Parameters:
    
    number - The number to be written to the Console.
  - print
```
public void print(int number,
                  int fieldSize)
```
    Writes the text representation of an 32-bit integer (an "int") to the Console with a specified field size.
    
    Parameters:
    
    number - The number to be written to the Console.
    
    fieldSize - The field width that the number is to be written in.
  - print
```
public void print(long number)
```
    Writes the text representation of an 64-bit integer (a "long") to the Console.
    
    Parameters:
    
    number - The number to be written to the Console.
  - print
```
public void print(long number,
                  int fieldSize)
```
    Writes the text representation of an 64-bit integer (a "long") to the Console with a specified field size.
    
    Parameters:
    
    number - The number to be written to the Console.
    
    fieldSize - The field width that the number is to be written in.
  - print
```
public void print(java.lang.String text,
                  int fieldSize)
```
    Writes a string to the Console with a specified field size..
    
    Parameters:
    
    text - The string to be written to the Console.
    
    fieldSize - The field width that the string is to be written in.
  - print
```
public void print(short number)
```
    Writes the text representation of an 16-bit integer (a "short") to the Console.
    
    Parameters:
    
    number - The number to be written to the Console.
  - print
```
public void print(short number,
                  int fieldSize)
```
    Writes the text representation of an 16-bit integer (a "short") to the Console with a specified field size.
    
    Parameters:
    
    number - The number to be written to the Console.
    
    fieldSize - The field width that the number is to be written in.
  - print
```
public void print(boolean value)
```
    Writes the text representation of a boolean to the Console.
    
    Parameters:
    
    value - The boolean to be written to the Console.
  - print
```
public void print(boolean value,
                  int fieldSize)
```
    Writes the text representation of a boolean to the Console with a specified field size.
    
    Parameters:
    
    value - The boolean to be written to the Console.
    
    fieldSize - The field width that the boolean is to be written in.
  - println
```
public void println()
```
    Writes a newline to the Console.
  - println
```
public void println(byte number)
```
    Writes the text representation of an 8-bit integer (a "byte") to the Console followed by a newline.
    
    Parameters:
    
    number - The number to be written to the Console.
  - println
```
public void println(byte number,
                    int fieldSize)
```
    Writes the text representation of an 8-bit integer (a "byte") to the Console with a specified field size followed by a newline.
    
    Parameters:
    
    number - The number to be written to the Console.
    
    fieldSize - The field width that the number is to be written in.
  - println
```
public void println(char ch)
```
    Writes a character to the Console followed by a newline.
    
    Parameters:
    
    ch - The character to be written to the Console.
  - println
```
public void println(char ch,
                    int fieldSize)
```
    Writes a character to the Console with a specified field size..
    
    Parameters:
    
    ch - The character to be written to the Console.
    
    fieldSize - The field width that the character is to be written in.
  - println
```
public void println(double number)
```
    Writes a double precision floating point number (a "double") to the Console followed by a newline.
    
    Parameters:
    
    number - The number to be written to the Console.
  - println
```
public void println(double number,
                    int fieldSize)
```
    Writes a double precision floating point number (a "double") to the Console with a specified field size followed by a newline.
    
    Parameters:
    
    number - The number to be written to the Console.
    
    fieldSize - The field width that the number is to be written in.
  - println
```
public void println(double number,
                    int fieldSize,
                    int decimalPlaces)
```
    Writes a double precision floating point number (a "double") to the Console with a specified field size and a specified number of decimal places followed by a newline.
    
    Parameters:
    
    number - The number to be written to the Console.
    
    fieldSize - The field width that the number is to be written in.
    
    decimalPlaces - The number of decimal places of the number to be displayed.
  - println
```
public void println(float number)
```
    Writes a floating point number (a "float") to the Console followed by a newline.
    
    Parameters:
    
    number - The number to be written to the Console.
  - println
```
public void println(float number,
                    int fieldSize)
```
    Writes a floating point number (a "float") to the Console with a specified field size followed by a newline.
    
    Parameters:
    
    number - The number to be written to the Console.
    
    fieldSize - The field width that the number is to be written in.
  - println
```
public void println(float number,
                    int fieldSize,
                    int decimalPlaces)
```
    Writes a floating point number (a "double") to the Console with a specified field size and a specified number of decimal places followed by a newline.
    
    Parameters:
    
    number - The number to be written to the Console.
    
    fieldSize - The field width that the number is to be written in.
    
    decimalPlaces - The number of decimal places of the number to be displayed.
  - println
```
public void println(int number)
```
    Writes the text representation of an 32-bit integer (an "int") to the Console followed by a newline.
    
    Parameters:
    
    number - The number to be written to the Console.
  - println
```
public void println(int number,
                    int fieldSize)
```
    Writes the text representation of an 32-bit integer (an "int") to the Console with a specified field size followed by a newline.
    
    Parameters:
    
    number - The number to be written to the Console.
    
    fieldSize - The field width that the number is to be written in.
  - println
```
public void println(long number)
```
    Writes the text representation of an 64-bit integer (a "long") to the Console followed by a newline.
    
    Parameters:
    
    number - The number to be written to the Console.
  - println
```
public void println(long number,
                    int fieldSize)
```
    Writes the text representation of an 64-bit integer (a "long") to the Console with a specified field size followed by a newline.
    
    Parameters:
    
    number - The number to be written to the Console.
    
    fieldSize - The field width that the number is to be written in.
  - println
```
public void println(java.lang.String text)
```
    Writes a string to the Console followed by a newline.
    
    Parameters:
    
    text - The string to be written to the Console.
  - println
```
public void println(java.lang.String text,
                    int fieldSize)
```
    Writes a string to the Console with a specified field size followed by a newline.
    
    Parameters:
    
    text - The string to be written to the Console.
    
    fieldSize - The field width that the string is to be written in.
  - println
```
public void println(short number)
```
    Writes the text representation of an 16-bit integer (a "short") to the Console followed by a newline.
    
    Parameters:
    
    number - The number to be written to the Console.
  - println
```
public void println(short number,
                    int fieldSize)
```
    Writes the text representation of an 16-bit integer (a "short") to the Console with a specified field size followed by a newline.
    
    Parameters:
    
    number - The number to be written to the Console.
    
    fieldSize - The field width that the number is to be written in.
  - println
```
public void println(boolean value)
```
    Writes the text representation of a boolean to the Console followed by a newline.
    
    Parameters:
    
    value - The boolean to be written to the Console.
  - println
```
public void println(boolean value,
                    int fieldSize)
```
    Writes the text representation of a boolean to the Console with a specified field size followed by a newline.
    
    Parameters:
    
    value - The boolean to be written to the Console.
    
    fieldSize - The field width that the boolean is to be written in.
  - quitProgram
```
protected void quitProgram()
```
    Hides the window and quits the program.
  - readBoolean
```
public boolean readBoolean()
```
    Reads a boolean from the Console. The actual text in the Console must be either "true" or "false" although case is irrelvant.
    
    Returns:
    
    The boolean value read from the Console.
  - readByte
```
public byte readByte()
```
    Reads an 8-bit integer (a "byte") from the Console. The actual text in the Console must be a number from -128 to 127.
    
    Returns:
    
    The byte value read from the Console.
  - readDouble
```
public double readDouble()
```
    Reads a double precision floating point number (a "double") from the Console.
    
    Returns:
    
    The double value read from the Console.
  - readFloat
```
public float readFloat()
```
    Reads a floating point number (a "float") from the Console.
    
    Returns:
    
    The float value read from the Console.
  - readInt
```
public int readInt()
```
    Reads a 32-bit integer (an "int") from the Console. The actual text in the Console must be a number from -2147483648 to 2147483647.
    
    Returns:
    
    The int value read from the Console.
  - readLine
```
public java.lang.String readLine()
```
    Reads a full line of text from the Console.
    
    Returns:
    
    The line of text read from the Console.
  - readLong
```
public long readLong()
```
    Reads a 64-bit integer (a "long") from the Console.
    
    Returns:
    
    The long value read from the Console.
  - readShort
```
public short readShort()
```
    Reads a 16-bit integer (a "short") from the Console. The actual text in the Console must be a number from -32768 to 32767.
    
    Returns:
    
    The short value read from the Console.
  - readString
```
public java.lang.String readString()
```
    Reads a whitespace delimited token from the Console.
    
    Returns:
    
    The token read from the Console.
  - readToken
```
protected java.lang.String readToken()
```
    Reads in input from the keyboard buffer until it hits a whitespace, which indicates the end of a token.
  - setWindowTitle
```
protected void setWindowTitle(java.lang.String s)
```
    Sets the window title.
    
    Parameters:
    
    e - The window event
  - windowActivated
```
public void windowActivated(java.awt.event.WindowEvent e)
```
    Does nothing. Called by the system after the window has been activated.
    
    Specified by:
    
    windowActivated in interface java.awt.event.WindowListener
    
    Parameters:
    
    e - The window event
  - windowClosed
```
public void windowClosed(java.awt.event.WindowEvent e)
```
    Does nothing. Called by the system after the window has been closed (dispose () has been called).
    
    Specified by:
    
    windowClosed in interface java.awt.event.WindowListener
    
    Parameters:
    
    e - The window event
  - windowClosing
```
public void windowClosing(java.awt.event.WindowEvent e)
```
    Quits the program. Called by the system when the close box of the window has been clicked.
    
    Specified by:
    
    windowClosing in interface java.awt.event.WindowListener
    
    Parameters:
    
    e - The window event
  - windowDeactivated
```
public void windowDeactivated(java.awt.event.WindowEvent e)
```
    Does nothing. Called by the system after the window has been deactivated.
    
    Specified by:
    
    windowDeactivated in interface java.awt.event.WindowListener
    
    Parameters:
    
    e - The window event
  - windowDeiconified
```
public void windowDeiconified(java.awt.event.WindowEvent e)
```
    Does nothing. Called by the system after the window has been deminimized.
    
    Specified by:
    
    windowDeiconified in interface java.awt.event.WindowListener
    
    Parameters:
    
    e - The window event
  - windowIconified
```
public void windowIconified(java.awt.event.WindowEvent e)
```
    Does nothing. Called by the system after the window has been minimized.
    
    Specified by:
    
    windowIconified in interface java.awt.event.WindowListener
    
    Parameters:
    
    e - The window event
  - windowOpened
```
public void windowOpened(java.awt.event.WindowEvent e)
```
    Does nothing. Called by the system after the window has been opened for the first time.
    
    Specified by:
    
    windowOpened in interface java.awt.event.WindowListener
    
    Parameters:
    
    e - The window event

Class Console

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

currentRow

currentCol

actualRow

actualCol

startCol

startRow

textColor

textBGColor

echoOn

clearToEOL

graphicsColor

font

graphicsCanvas

mainReturned

SAVE_COMMAND

PRINT_COMMAND

QUIT_COMMAND

DEFAULT_ROWS

DEFAULT_COLUMNS

DEFAULT_FONT_SIZE

DEFAULT_TITLE

TAB_SIZE

window

maxRow

maxCol

BUFFER_SIZE

EMPTY_BUFFER

kbdBuffer

kbdBufferHead

kbdBufferTail

lineBuffer

lineBufferHead

lineBufferTail

ungotChar

consoleCanvasPanelInner

eofReached

Constructor Detail

Console

Console

Console

Console

Console

Console

Console

Console

Method Detail

clear

clearRect

copyArea

draw3DRect

drawArc

drawImage

drawLine

drawMapleLeaf

drawOval

drawPolygon

drawRect

drawRoundRect

drawStar

drawString

eraseLineOfInput

erasePreviousChar

fill3DRect

fillArc

fillMapleLeaf

fillOval

fillPolygon

fillRect

fillRoundRect

fillStar

isCharAvail

getChar

getColumn

getHeight