Java Programming Code Examples

Demonstrating method mouseDrag import java.applet.Applet; import java.awt.*; public class Drag extends Applet { private int xValue, yValue; private boolean firstTime; public void init() { // first running of program firstTime = true; } public void paint( Graphics g ) { // do not draw the first time if ( !firstTime ) g.fillOval( xValue, yValue, 4, 4 ); } // override Component class update public void update( Graphics g ) { // do not clear background // only call paint paint( g ); } public boolean mouseDrag( Event e, int x, int y ) { xValue = x; yValue = y; // enable drawing firstTime = false; repaint(); // call repaint showStatus( "Event: mouseDrag" ); return true; // event handled } }