Basic HTML version of Foils prepared 18 May 97

Foil 25 The default Update(Graphics g) Method

From Java Tutorial - Spring 1997 Part 3:Graphics and the Abstract Windowing Toolkit Peking Tutorial, Web Certificate -- Spring-Summer 1997. by Nancy J. McCracken,Geoffrey C. Fox
1 This sets background color and initializes applet bounding rectangle to this color
  • public void update(Graphics g) {
    • g.setColor(getBackground());
    • g.fillRect(0,0,width,height));
    • g.setColor(getForeground());
    • paint(g);
    • }
2 getBackground() and getForeground() are methods in component class
3 fillRect() is a method in Graphics class
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