java中，使用JFrame作为程序主窗口时，关闭程序询问当前状态是否需要存盘或者让用户确认是否真的退出等。-java, the use of class as the main program window, Close asks whether the current status or need to archive allows users to confirm whether or not really quit.

java写的图形界面，主要是对jframe的讲解，有视频，有源码，有笔记，方便大家的学习。-graphical interface written in java, mainly for jframe explanations, there is video, there is source code, notes, to facilitate everyone' s learning.

QQ登陆界面示例程序，主要用于Java JFrame的学习。-the face for QQ

java中的一个发言的对话框的设计的一个精简例子-jframe speak dialog jtextfield