博為峰小博老師：
創建一個繼承DefaultListModel的類來創建一個列表框。其具體的程序代碼如下所示:
publicclassBWF {
publicstaticvoidmain(String[]args) {
JFramejf=newJFrame("博為峰教育");
ContainercontentPane=jf.getContentPane();
ListModelmode=newDataModel();
JListlist=newJList(mode);
list.setVisibleRowCount(5);
list.setBorder(BorderFactory.createTitledBorder("電腦配件"));
contentPane.add(newJScrollPane(list));
jf.pack();
jf.setVisible(true);
jf.addWindowListener(newWindowAdapter() {
publicvoidwindowClosing(WindowEvente) {
System.exit(0);
}
});
}
}
classDataModelextendsDefaultListModel{
String[]s={"主板","顯示器","內存","CPU","硬盤","電源","鍵盤","鼠標","顯卡"};
publicintgetSize() {
returns.length;
}
publicStringgetElementAt(intindex) {
return(index+1)+"."+s[index++];
}
}
