1 import javax.swing.*; 2 import java.awt.*; 3 import javax.swing.border.*; 4 public class TestSwingCommonFeatures extends JFrame 5 { 6     public TestSwingCommonFeatures() 7     { 8         JPanel p1 = new JPanel(new FlowLayout(FlowLayout.LEFT,2,2));//创建一个面板，使用流布局 9         JButton jbtLeft = new JButton("Left");10         JButton jbtCenter = new JButton("Center");11         JButton jbtRight = new JButton("Right");12         jbtLeft.setBackground(Color.WHITE);//设计背景色13         jbtCenter.setForeground(Color.GREEN);//设计前景色14         jbtRight.setToolTipText("This is the Right button");//设置工具提示文本15         p1.add(jbtLeft);16         p1.add(jbtCenter);17         p1.add(jbtRight);18         p1.setBorder(new TitledBorder("Three Button"));//创建标题边界19         Font largeFont = new Font("TimesRoman",Font.BOLD,20);//创建字体对象20         Border lineBorder = new LineBorder(Color.BLACK,2);//创建一个线边界对象21         JPanel p2 = new JPanel(new GridLayout(1,2,5,5));//创建另一个面板,使用网格布局22         JLabel jlbRed = new JLabel("Red");23         JLabel jlbOrange = new JLabel("Orange");24         jlbRed.setForeground(Color.RED);//设计前景色25         jlbOrange.setForeground(Color.ORANGE);26         jlbRed.setFont(largeFont);//设计字体27         jlbOrange.setFont(largeFont);28         jlbRed.setBorder(lineBorder);//设计线边界29         jlbOrange.setBorder(lineBorder);30         p2.add(jlbRed);31         p2.add(jlbOrange);32         p2.setBorder(new TitledBorder("Two Labels"));//设置标题边界33         setLayout(new GridLayout(2,1,5,5));//边框内设置为网格布局34         add(p1);//将面板添加到边框内35         add(p2);36     }37     public static void main(String[] agrs)38     {39         JFrame frame = new TestSwingCommonFeatures();40         frame.setTitle("TestSwingCommonFeatures");41         frame.setSize(300,150);42         frame.setLocationRelativeTo(null);43         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);44         frame.setVisible(true);45     }46 }