日期:2014-05-20 浏览次数:20744 次
package Test_11;
import java.awt.*;
import javax.swing.*;
public class DrawRectangles extends JFrame {
public DrawRectangles(){
setTitle("DrawRectangles");
getContentPane().add(new RectPanel());
}
public static void main(String[] args) {
DrawRectangles frame = new DrawRectangles();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(300, 250);
frame.setVisible(true);
}
}
class RectPanel extends JPanel {
protected void paintCompoent(Graphics g){
super.paintComponent(g);
// Set new color
g.setColor(Color.red);
// Draw a rectangle
g.drawRect(5, 5, getWidth() / 2 - 10, getHeight() / 2 - 10);
// Draw a rectangle
g.drawRoundRect(getWidth() / 2 + 5, 5, getWidth() / 2 - 10,
getHeight() / 2 - 10, 60, 30);
// Change the color to cyan
g.setColor(Color.cyan);
// Draw a 3D retangle
g.fill3DRect(5, getHeight() / 2 + 5, getWidth() / 2 - 10,
getHeight() / 2 - 10, true);
// Draw a raised 3D retangle
g.fill3DRect(getWidth() / 2 + 5, getHeight() / 2 + 5,
getWidth() / 2 - 10, getHeight() / 2 - 10, false);
}
}