如何检查 jframe 窗口打开。如果 jframe 窗口打开而不是单击外部然后在 java 中闪烁 jframe 窗口

Question

Allow Only One Jframe window if try to open other than blinking jframe window in java swing **

HOW

**

Answer 1

I can only guess what your question is supposed to mean, but my best guess would be that you want to create a modal frame. JFrame doesn't support this type of frame. You'll have to use JDialog ( http://docs.oracle.com/javase/7/docs/api/javax/swing/JDialog.html ) instead.

JDialog dialog = new JDialog(parentFrame , "someTitle" , true);
... //create dialog

dialog.setVisible(true);
//now the parentFrame is blocked until the dialogwindow is closed

Answer 2

Allow Only One Jframe window if try to open other than blinking jframe window in java swing

• don't to create more than one JFrame to use JDialog instead

• set JFrame as owner for the JDialog with setModal