Solved

adding container's parent to itself

Posted on 2006-07-23
9
1,677 Views
Last Modified: 2012-08-13

hello there,

i am trying to insert many jbuttons into a jpanel.but i get this error.can anyone help me solve this

java.lang.IllegalArgumentException: adding container's parent to itself

private JPanel createTerminalPanel()
    {         
          JPanel pKey = new JPanel(new GridLayout());
          
          
          innerCardPanel = new JPanel(new CardLayout());
          
          pKey.add(new JButton("C"));
        pKey.add(new JButton("MR"));
        pKey.add(new JButton("M-"));
        pKey.add(new JButton("M+"));
        pKey.add(new JButton("7"));
        pKey.add(new JButton("8"));
        pKey.add(new JButton("9"));
        pKey.add(new JButton("/"));
        pKey.add(new JButton("4"));
        pKey.add(new JButton("5"));
        pKey.add(new JButton("6"));
        pKey.add(new JButton("*"));
        pKey.add(new JButton("1"));
        pKey.add(new JButton("2"));
        pKey.add(new JButton("3"));
        pKey.add(new JButton("-"));
        pKey.add(new JButton("0"));
        pKey.add(new JButton("."));
        pKey.add(new JButton("="));
        pKey.add(new JButton("+"));
       
        innerCardPanel.add(pKey, MDF_PANEL);
       
        pKey.add(innerCardPanel, BorderLayout.CENTER);
          
          return pKey;
    }
0
Comment
Question by:zolf
  • 5
  • 3
9 Comments
 
LVL 23

Assisted Solution

by:Ajay-Singh
Ajay-Singh earned 125 total points
Comment Utility
> pKey.add(innerCardPanel, BorderLayout.CENTER);

i think you don't need this
0
 
LVL 86

Expert Comment

by:CEHJ
Comment Utility
>>innerCardPanel.add(pKey, MDF_PANEL);

should be

innerCardPanel.add(pKey, "Calculator");
0
 
LVL 86

Expert Comment

by:CEHJ
Comment Utility
Also, you don't want to add the card panel to the grid layout
0
 
LVL 86

Accepted Solution

by:
CEHJ earned 125 total points
Comment Utility
(which you're doing here)

>>pKey.add(innerCardPanel, BorderLayout.CENTER);
0
IT, Stop Being Called Into Every Meeting

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

 

Author Comment

by:zolf
Comment Utility


can you give me an example where i can add many buttons into a jpanel.
0
 
LVL 86

Expert Comment

by:CEHJ
Comment Utility
That bit's OK. You need to determine what you want to do with the CardLayout. What's its purpose? At the moment the reference to it is lost
0
 

Author Comment

by:zolf
Comment Utility

i use the cardlayout to switch between two views.my application which i am working on is very complicated and vast.
i managed to get some buttons on a panel and show.but i have got other error which i have to look into.
thanks anyway.
0
 

Author Comment

by:zolf
Comment Utility

that is the reason i cannot paste all the code in here.
0
 
LVL 86

Expert Comment

by:CEHJ
Comment Utility
:-)

OK. If you want to add that calculator panel to a CardLayout, you can pass a reference to the CardLayout into the method, or just add the return value directly to the CardLayout
0

Featured Post

Highfive + Dolby Voice = No More Audio Complaints!

Poor audio quality is one of the top reasons people don’t use video conferencing. Get the crispest, clearest audio powered by Dolby Voice in every meeting. Highfive and Dolby Voice deliver the best video conferencing and audio experience for every meeting and every room.

Join & Write a Comment

Suggested Solutions

Are you developing a Java application and want to create Excel Spreadsheets? You have come to the right place, this article will describe how you can create Excel Spreadsheets from a Java Application. For the purposes of this article, I will be u…
In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
Viewers learn about the “while” loop and how to utilize it correctly in Java. Additionally, viewers begin exploring how to include conditional statements within a while loop and avoid an endless loop. Define While Loop: Basic Example: Explanatio…
This tutorial covers a step-by-step guide to install VisualVM launcher in eclipse.

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

7 Experts available now in Live!

Get 1:1 Help Now