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java中怎样实现单击下拉列表选项时弹出对话框

2025-03-31 10:25:37

推荐回答（5个）

回答1：

看看这个是不是你想要的？

Choice c = new Choice();//声明一个choice
c.addItem("选项1");//添加选项1
c.addItem("选项2");//添加选项2
c.addItemListener(new ItemListener(){ //添加事件监听

public void itemStateChanged(ItemEvent e) {
if(c.getSelectedIndex()==0)
{
//说明选中了选项1，这里可以执行相关操作
}
else if(c.getSelectedIndex() == 1)
{
//说明选中了选项2，这里可以执行相关操作
}

}
});

最后将c添加到frame 或panel中就可以了

回答2：

你把代码发全点这些我看是对的
showConfirmDialog(Component parentComponent,
Object message,
String title,
int optionType,
int messageType,
Icon icon)
你确定这个方法里你放了6个参数么?

回答3：

分太少不值得回答只值得灌水

回答4：

当然不行了。

回答5：

50分不少了你还灌水？？

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