Swing的JLIST练习教程

新建一个名为：SimpleTable的java类

import javax.swing.*;
import javax.swing.event.AncestorEvent;
import javax.swing.event.AncestorListener;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import java.awt.*;

public class SimpleTable
{

    public static void main(String[] args)
    {
        JFrame window = new JFrame("滚动测试");
        window.setResizable(true);
        window.setLayout(new BorderLayout());
        window.setBounds(100,100,500,500);
        String listdata[]={"小城","小杰","小金","小李","小王","小黄","小样","小柯","小谁","捷克","陈东","陈东","李洁珂","生怕","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东","陈东"};
        JList list = new JList(listdata);
        list.setBounds(0,0,100,400);
        DefaultListCellRenderer renderer = new DefaultListCellRenderer();
        renderer.setHorizontalAlignment(SwingConstants.CENTER);
        list.setCellRenderer(renderer);
        final int[] clicks = {0};
        list.addListSelectionListener(new ListSelectionListener() {
            @Override
            public void valueChanged(ListSelectionEvent e) {
                clicks[0] = clicks[0] +1;
                if(clicks[0]>1){
                    clicks[0]=0;
                }
                else
                {
                    JDialog dialog = new JDialog(window,true);
                    dialog.setSize(300,300);
                    JLabel label = new JLabel("s",JLabel.CENTER);
                    label.setFont(new Font("黑体",Font.PLAIN,30));
                    String value = (String) list.getSelectedValue();
                    label.setText("你的选择是："+value);
                    dialog.setLayout(new BorderLayout());
                    label.setSize(30,30);
                    dialog.setLocation(200,200);
                    dialog.add(label,BorderLayout.CENTER);
                    dialog.setVisible(true);
                }

            }
        });
        JScrollPane scrollPane = new JScrollPane(list);
        scrollPane.setPreferredSize(new Dimension(300,300));
        window.add(scrollPane);
        window.setVisible(true);
    }
}