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Thread: JPanel in a Vector: pb

  1. #1
    Junior Member
    Join Date
    Apr 2013
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    Default JPanel in a Vector: pb

    Dear all,

    I get an error when trying to get a JPanel from a Vector:

    JComponentsResults result; // (JComponentsResults extends Vector)
    System.out.println("String Representation of the Vector:" + result.toString());//debugging
    (JPanel) toto = (JPanel)result.get(iComponent);

    The output is :
    Exception in thread "AWT-EventQueue-0" String representation : [[javax.swing.JPanel[,0,0,0x0,layout=java.awt.GridBagLayout,alignmentX= 0.0,alignmentY=0.0,border=,flags=9,maximumSize=,mi nimumSize=,preferredSize=]]]
    java.lang.ClassCastException: java.util.Vector cannot be cast to javax.swing.JPanel
    at Session.displayResults(Session.java:158)

    I Tried to cast to JComponent, it does not work either.
    Is it possible to get JComponents from a Vector ?

    Any idea will be appreciated.


  2. #2
    Super Moderator pbrockway2's Avatar
    Join Date
    Jan 2012
    Thanked 206 Times in 182 Posts

    Default Re: JPanel in a Vector: pb

    A small simple that illustrates the problem would be helpful. It should be compilable and run but doesn't need all your program logic: it is enough to should show the declaration of result, and the code used to put things into it.

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