Window Close in Swing Application Problem

Question

i have build a swing application and there are 3 frames

frame-1 contains button that open frame-2 and frame3. Now when i click on the close on top right corner in either frame 2 or frame 3 ,the whole application closes(frame 1 too closes)

What shall i do to avoid this ?

Answer 1

对要关闭的帧执行此操作，但不要在关闭它们时关闭整个应用程序：

theFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE)