java Border的使用

import java.awt.Color; import java.awt.Container; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JFrame; public class BorderTest { public static void main(String[] args) { JFrame f = new JFrame("Border"); Container content = f.getContentPane(); JButton b = new JButton(); b.setBorder(BorderFactory.createLineBorder(Color.blue, 10));//createLineBorder方法指定边界的颜色与宽度. content.add(b); f.setSize(200, 150); f.show(); f.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); } }