ch9_38.java

60多个javaSwing范例

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.Vector;
public class ch9_38 extends JFrame
{
	public ch9_38()
	{
		super("测试窗口");
		setBounds(20,20,500,300);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
	public static void main(String [] args)
	{
		ch9_38 f=new ch9_38();
		
		ListModel mode=new DataModel();
		JList lt=new JList(mode);
		lt.setVisibleRowCount(5);
		lt.setBorder(BorderFactory.createTitledBorder("国家"));
		
		f.getContentPane().add(new JScrollPane(lt));
		

					
		f.pack();
		f.show();
	}
	
} 
/*
class DataModel extends AbstractListModel
{
	String [] s={"美国","日本","大陆","英国","法国","意大利","巴西","路马尼亚"};
	public Object getElementAt(int index)
	{
		return (index+1)+"."+s[index++];
	}	
	public int getSize()
	{
		return s.length;
	}
}
*/
class DataModel extends DefaultListModel
{
	String [] s={"美国","日本","大陆","英国","法国","意大利","巴西","路马尼亚"};
	DataModel()
	{
		for(int i=0;i<s.length;i++)
			addElement((i+1)+"."+s[i]);
	}	
}