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JFrame.setVisible() - IllegalArgumentException problem

  Asked By: Egidius    Date: Jun 20    Category: Java    Views: 914
  

Recently a problem has popped up in my program, it comes while
trying to set a JFrame to visible. How exactly can just setting
it to visible cause an IllegalArgumentException?
Container being added to itself is the general message being
delivered

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1 Answer Found

 
Answer #1    Answered By: James Williams     Answered On: Jun 20

The method is
public void setVisible(boolean b)

so you need to specify the parameter (whether true or false) in the method
setVisible.

For your case, it will be

setVisible(true);

 
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