Question

JAVA 子窗口做成单例，可是我子窗口继承了JFrame

不用继承吗，你Q多少我加你请教哦。你java好棒哦。。

Answer 1

public class GoodsManage extends JDialog {private static GoodsManage test;
public static GoodsManage getInstance()
{if(test==null){ synchronized(GoodManage.class){
if(test==null){test = new GoodsManage();
}}}return test;
}

}

Answer 2

天亮了~~~