下面將列舉一個實例需五，這個實例將通過創(chuàng)建一個實現(xiàn)了抽象類AbstractListModel的DataModel類來創(chuàng)建一個列表框娶聘，其代碼如下所示:
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("配置一臺電腦需要的組件"));
contentPane.add(newJScrollPane(list));
jf.pack();
jf.setVisible(true);
jf.addWindowListener(newWindowAdapter() {
publicvoidwindowClosing(WindowEvente) {
System.exit(0);
}
});
}
}
classDataModelextendsAbstractListModel{
String[]s={"主板","顯示器","內(nèi)存","CPU","硬盤","電源","鍵盤","鼠標(biāo)","顯卡"};
publicintgetSize() {
returns.length;
}
publicString getElementAt(intindex) {
return(index+1)+"."+s[index++];
}
}
