package com.kuang.lesson1; import java.awt.*; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; public class TestFlowLayout { public static void main(String[] args) { Frame frame=new Frame(); //组件按钮 Button button1=new Button("button 1"); Button button2=new Button("button 2"); Button button3=new Button("button 3"); Button button4=new Button("button 4"); //设置流式布局 默认是靠中 //frame.setLayout(new FlowLayout()); frame.setLayout(new FlowLayout(FlowLayout.LEFT)); frame.setSize(600,600); frame.add(button1); frame.add(button2); frame.add(button3); frame.add(button4); frame.setVisible(true); frame.addWindowListener(new WindowAdapter() { //窗体关闭时做的事 @Override public void windowClosing(WindowEvent e) { // super.windowClosed(e); System.exit(0); } } ); } }