how to close a single class that contains frame in java

Question

i wan to close the particular classname.java window alone.

I am developing a GUI using netbeans. I created a main class and defined a button , when clicked will load new classname().setVisible(true);

this classname.java contains a frame with components to get the input

now when i use System.exit(); in classname.java all the windows are closed

i wan to close the particular classname.java window alone. how can i do so ?

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
   System.exit(0); // TODO add your handling code here:
}

right, this is actually a duplicate: http://stackoverflow.com/questions/573317/java-swing-close-window-without-exiting-app — Sébastien Le Callonnec, Sep 28 '12 at 10:27

score 2 · Answer 1 · answered Sep 28 '12 at 10:27

2

USE DISPOSE_ON_CLOSE

JFrame f = JFrame();
f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE)`

answered Sep 28 '12 at 10:27

Kumar Vivek Mitra

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using DISPOSE_ON_CLOSE also closes all the open windows – radish Sep 28 '12 at 10:28
1

@radish see this link now http://stackoverflow.com/questions/1944446/close-one-jframe-without-closing-another – Kumar Vivek Mitra Sep 28 '12 at 10:32
First do some research before negating an answer – Kumar Vivek Mitra Sep 28 '12 at 10:33
You have negated my answer without any delay, so i insist that you do the same to read it and understand it and correct the wrongs – Kumar Vivek Mitra Sep 28 '12 at 10:34
Even see this link http://stackoverflow.com/questions/573317/java-swing-close-window-without-exiting-app – Kumar Vivek Mitra Sep 28 '12 at 10:37
sorry that negation was by mistake – radish Sep 28 '12 at 10:38
Its ok, seeing a negation instead of an upvote on the right answer is sometimes hurting – Kumar Vivek Mitra Sep 28 '12 at 10:39
Thanks for your time to reply PhilNerd's answer helped me to get what i want. – radish Sep 28 '12 at 10:40

Phil · Accepted Answer · 2012-09-28T10:31:55.823

1

If you just want to hide it use

setVisible(false);

Or to dispose use

dispose();

edited Sep 28 '12 at 10:31

answered Sep 28 '12 at 10:26

Phil

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score 0 · Answer 3 · answered Sep 28 '12 at 10:26

0

Make sure you keep a reference to the classname instance you created, and call either setVisible(false) or dispose() on it.

answered Sep 28 '12 at 10:26

Sébastien Le Callonnec

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score 0 · Answer 4 · answered Sep 28 '12 at 10:36

0

When you do that,it will close all the windows opened, it means that the app will be ended. I think you should use this method: windowClosing(). You can get more information about this, here:link

I hope that is helpful to you. Regards, Gil

answered Sep 28 '12 at 10:36

Gil Mota

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how to close a single class that contains frame in java

4 Answers4