gridlayoutdemo.java

java2应用开发指南第一版

//GridLayoutDemo.java
import java.awt.*;
import java.awt.event.*;

public class GridLayoutDemo extends Frame
{
	public GridLayoutDemo()
	{
		//设置框架窗口的布局管理器为GridLayout(2行4列)
		this.setLayout( new GridLayout(2,4));
		
		//向框架窗口添加8个Button
		this.add( new Button("1") );
		this.add( new Button("2") );
		this.add( new Button("3") );
		this.add( new Button("4") );
		this.add( new Button("5") );
		this.add( new Button("6") );
		this.add( new Button("7") );
		this.add( new Button("8") );
	}
	public static void main( String[] args )
	{
		GridLayoutDemo frmGridLayout=new GridLayoutDemo();
		
		//设置框架窗体的事件监听(关闭窗体事件)
		frmGridLayout.addWindowListener(new WindowAdapter(){
			public void windowClosing(WindowEvent e)
			{
				System.exit(0);
			}
		});

		//显示框架窗体
		frmGridLayout.pack();
		frmGridLayout.show();
	}
}