JList不同的列表模式
JLsit(ListModel mode):其中ListModel可以是：ListModel接口：要重寫addListDataListener() removeListDataListener() getSize()getElementAt()方法
AbstractListModel抽象類：要重寫getSize()getElementAt()方法
DefaultListModel類：不需要重寫任何方法，而且DefaultListModel具有Vector功能，可以addElement()removeElement()getElementAt()copyInto()等操作。
import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.event.*;public class JListDemo4 {public JListDemo4(){JFrame jf = new JFrame();Container contentPane = jf.getContentPane();contentPane.setLayout(new GridLayout(1,2));ListModel mode = new DataModel3(1);JList list = new JList(mode);list.setBorder(BorderFactory.createTitledBorder("你用過哪些軟件？"));mode = new DataModel3(2);JList list2 = new JList(mode);list2.setBorder(BorderFactory.createTitledBorder("你用過哪些數據庫軟件？"));contentPane.add(list);contentPane.add(list2);jf.pack();jf.setVisible(true);jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}public static void main(String...args){new JListDemo4();}}class DataModel3 extends DefaultListModel{String[] s = {"MS SQL","MySQL","IBM DB2","ORACLE","Windows 2000","Linux","Unix","OS2"};int flag;DataModel3(int flag){this.flag = flag;}@Overridepublic Object getElementAt(int index){String temp = null;if(flag==1){temp = (index+1)+"."+s;}if(flag==2){if(index<4){temp = (index+1)+"."+s;}}return temp;}@Overridepublic int getSize(){return s.length;}}
參考：深入淺出Java Swing程序設計
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