frame1.java

jbuilder2005

package round_3dtest;

import java.awt.*;
import javax.swing.*;

public class Frame1
    extends JFrame {
  JPanel contentPane;
  BorderLayout borderLayout1 = new BorderLayout();

  public Frame1() {
    try {
      setDefaultCloseOperation(EXIT_ON_CLOSE);
      jbInit();
    }
    catch (Exception exception) {
      exception.printStackTrace();
    }
  }

  /**
   * Component initialization.
   *
   * @throws java.lang.Exception
   */
  private void jbInit() throws Exception {
    contentPane = (JPanel) getContentPane();
    contentPane.setLayout(borderLayout1);
    setSize(new Dimension(300, 200));
    setTitle("绘制圆角矩形和三维矩形");
  }
  public void paint(Graphics g)    {
    g.setColor(Color.gray);
    g.drawRoundRect(30,100,100,50,20,30);  //画空心圆角矩形
    g.fillRoundRect(130,100,100,50,20,30);  //画实心圆角矩形
    g.drawRoundRect(40,20,80,80,80,80);   //画空心圆
    g.fillRoundRect(150,20,80,80,80,80);  //画实心圆
    //通过设置合适的圆弧的宽度和高度，我们可以用绘制圆角矩形的方法来绘制圆形
    g.setColor(Color.red);
    g.draw3DRect(20,160,40,20,true);   //凸空心3D矩形
    g.draw3DRect(70,160,40,20,false);  //凹空心3D矩形
    g.fill3DRect(120,160,40,20,true);    //凸实心3D矩形
    g.fill3DRect(170,160,40,20,false);   //凹实心3D矩形}
}

}