Solved

adding container's parent to itself

Posted on 2006-07-23
9
1,710 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
ID: 17162830
> pKey.add(innerCardPanel, BorderLayout.CENTER);

i think you don't need this
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 17162832
>>innerCardPanel.add(pKey, MDF_PANEL);

should be

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

Expert Comment

by:CEHJ
ID: 17162833
Also, you don't want to add the card panel to the grid layout
0
Gigs: Get Your Project Delivered by an Expert

Select from freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely and get projects done right.

 
LVL 86

Accepted Solution

by:
CEHJ earned 125 total points
ID: 17162834
(which you're doing here)

>>pKey.add(innerCardPanel, BorderLayout.CENTER);
0
 

Author Comment

by:zolf
ID: 17162836


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

Expert Comment

by:CEHJ
ID: 17162838
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
ID: 17162867

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
ID: 17162871

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

Expert Comment

by:CEHJ
ID: 17162878
:-)

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

Courses: Start Training Online With Pros, Today

Brush up on the basics or master the advanced techniques required to earn essential industry certifications, with Courses. Enroll in a course and start learning today. Training topics range from Android App Dev to the Xen Virtualization Platform.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

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.
Basic understanding on "OO- Object Orientation" is needed for designing a logical solution to solve a problem. Basic OOAD is a prerequisite for a coder to ensure that they follow the basic design of OO. This would help developers to understand the b…
Viewers learn about the third conditional statement “else if” and use it in an example program. Then additional information about conditional statements is provided, covering the topic thoroughly. Viewers learn about the third conditional statement …
Viewers will learn about arithmetic and Boolean expressions in Java and the logical operators used to create Boolean expressions. We will cover the symbols used for arithmetic expressions and define each logical operator and how to use them in Boole…

785 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