Circle

Class Circle

java.lang.Object
  Circle

A circle that can be manipulated and that draws itself on a canvas.

Constructor Summary
`Circle()` Create a new circle at default position with default color.

Method Summary
`void`	`changeColor(java.lang.String newColor)` Change the color.
`void`	`changeSize(int newDiameter)` Change the size to the new size (in pixels).
`void`	`makeInvisible()` Make this circle invisible.
`void`	`makeVisible()` Make this circle visible.
`void`	`moveDown()` Move the circle a few pixels down.
`void`	`moveHorizontal(int distance)` Move the circle horizontally by 'distance' pixels.
`void`	`moveLeft()` Move the circle a few pixels to the left.
`void`	`moveRight()` Move the circle a few pixels to the right.
`void`	`moveUp()` Move the circle a few pixels up.
`void`	`moveVertical(int distance)` Move the circle vertically by 'distance' pixels.
`void`	`slowMoveHorizontal(int distance)` Slowly move the circle horizontally by 'distance' pixels.
`void`	`slowMoveVertical(int distance)` Slowly move the circle vertically by 'distance' pixels.

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

Constructor Detail

public Circle()

Create a new circle at default position with default color.

Method Detail

public void changeColor(java.lang.String newColor)

Change the color. Valid colors are "red", "yellow", "blue", "green", "magenta" and "black".

public void changeSize(int newDiameter)

Change the size to the new size (in pixels). Size must be >= 0.

public void makeInvisible()

Make this circle invisible. If it was already invisible, do nothing.

public void makeVisible()

Make this circle visible. If it was already visible, do nothing.

public void moveDown()

Move the circle a few pixels down.

public void moveHorizontal(int distance)

Move the circle horizontally by 'distance' pixels.

public void moveLeft()

Move the circle a few pixels to the left.

public void moveRight()

Move the circle a few pixels to the right.

public void moveUp()

Move the circle a few pixels up.

public void moveVertical(int distance)

Move the circle vertically by 'distance' pixels.

public void slowMoveHorizontal(int distance)

Slowly move the circle horizontally by 'distance' pixels.

public void slowMoveVertical(int distance)

Slowly move the circle vertically by 'distance' pixels.