listmultiple.java

由于想一次上传成功 所以将二个教程打包成了一个 这些例子几乎包含了所有java的框架集合

import java.awt.*;
import javax.swing.*;
import javax.swing.event.*;

/*
<APPLET
    CODE=listmultiple.class
    WIDTH=300
    HEIGHT=200 >
</APPLET>
*/

public class listmultiple extends JApplet implements ListSelectionListener 
{
    JList jlist;

    public void init() 
    {
        Container contentPane = getContentPane();
        String[] items = new String[12]; 

        for(int loop_index = 0; loop_index <= 11; loop_index++) {
            items[loop_index] = "Item " + loop_index;
        }

        jlist = new JList(items);
        JScrollPane jscrollpane = new JScrollPane(jlist);
        jlist.setVisibleRowCount(5);
        jlist.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
        jlist.addListSelectionListener(this);

        contentPane.setLayout(new FlowLayout());
        contentPane.add(jscrollpane);
    }

    public void valueChanged(ListSelectionEvent e)
    {
        int[] indexes = jlist.getSelectedIndices();
        String outString = "You chose:";
        for(int loop_index = 0; loop_index < indexes.length; loop_index++){
            outString += " item " + indexes[loop_index];
        }
        showStatus(outString);
    }
}