using drawRect() and fillRect() to draw a histogram Example
The applet draws a histogram of values. An array is initialized with some values to be represented.
Each value is used to set the size of its representative rectangle.
// drawRect() fillRect() histogram Example
import java.awt.*;
import javax.swing.*;
class Histogram extends JApplet {
@Override public void paint(Graphics g) {
super.paint(g);
int ai[] = {120, 30, 150, 70, 110, 10, 50};
for (int x=10, y=250,i=0; i < ai.length; ++i, x+=40) {
g.setColor(Color.yellow);
g.fillRect(x,y-ai[i],30,ai[i]);
g.setColor(Color.black);
g.drawRect(x,y-ai[i],30,ai[i]);
}
}
}