e1307.java

java小程序

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class E1307 extends JFrame implements ListSelectionListener
{
private Container c;
private JList list;
private JTextArea ta;
private String str[]={"Black","Blue","Green","Orange","Red"};
public E1307()
{
super("E1307.java:JList及JTextArea测试");
c=getContentPane();
ta=new JTextArea("",2,30);
c.setLayout(new FlowLayout(FlowLayout.CENTER));
list=new JList(str);
list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
list.addListSelectionListener(this);
c.add(list);
c.add(ta);
setSize(400,200);
setVisible(true);
}

public void valueChanged(ListSelectionEvent e)
{
String str=" 您选";
str+=list.getSelectedValue().toString();
ta.setText(str);
}
public static void main(String args[])
{
E1307 app=new E1307();
app.addWindowListener(new MyWindowListener());
}
}