Layout (FlowLayout使用例子)

import java.awt.FlowLayout;

import javax.swing.JButton;
import javax.swing.JFrame;

/**
* FlowLayout使用例子
* @author brj
*
*/
public class TestFlowLayout extends JFrame {
public TestFlowLayout() {
  this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  //设置关闭时结束程序
 
  FlowLayout layout = new FlowLayout(FlowLayout.RIGHT, 20, 30);
  //右对齐，水平和垂直间隙分别是20，30
 
  setLayout(layout);
  JButton btn = new JButton("btn1");
  getContentPane().add(btn);

  btn = new JButton("btn2");
  getContentPane().add(btn);

  btn = new JButton("btn3");
  getContentPane().add(btn);

  pack();
}

public static void main(String[] args) {
  JFrame frame = new TestFlowLayout();
  frame.setVisible(true);
}

}