import java.applet.*;
import java.awt.*;
import java.awt.Graphics;
public class Scribble extends Applet
{
int xpoint;
int ypoint;
Checkbox red, blue, green, yellow;
CheckboxGroup cbg;
public void init(){
cbg = new CheckboxGroup();
red = new Checkbox("Red", cbg, true);
blue = new Checkbox("Blue", cbg, false);
green = new Checkbox("Green", cbg, false);
yellow = new Checkbox("Yellow", cbg, false);
add(red);
add(blue);
add(green);
add(yellow);
}
public boolean mouseDown(Event e, int x, int y)
{
xpoint = x;
ypoint = y;
return true;
}
public boolean mouseDrag(Event e, int x, int y)
{
Graphics g = getGraphics();
g.fillOval(xpoint, ypoint, 5, 5);
xpoint = x;
ypoint = y;
return false;
}
} |