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Thread: JPanel GridLayout isn't working

  1. #1
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    Default JPanel GridLayout isn't working

    I am trying to make JPanels that add components vertically instead of horizontally but I can't get it to work. I used new GridLayout(0,1) and it works for my JFrame so I am confused as to why it won't work for the JPanel as well. My code is posted below

    import java.awt.*;
    import java.awt.event.*;
    import javax.swing.*;
    class GUIClass{
      GUIClass(){
        JFrame jfrm = new JFrame("Testing");
        jfrm.setLayout(new GridLayout(0,1));
        jfrm.setSize(500,500);
        jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     
        Ballot[] ballotArray = new Ballot[3];
        for(int i=0;i<2;i++){
          ballotArray[i] = new Ballot("Button "+i);
          jfrm.add(ballotArray[i]);
        }
     
        jfrm.setVisible(true);
      }
    }

    import java.awt.*;
    import java.awt.event.*;
    import javax.swing.*;
    class Ballot extends JPanel{
     
      Ballot(String name){
        new JPanel(new GridLayout(0,1));
        JButton jbtn = new JButton(name);
        JLabel jlbl = new JLabel();
        jlbl.setText(name + 1);
        add(jbtn);
        add(jlbl);
      }
     
    }

    import java.io.*;
    import java.util.*;
    import java.awt.*;
    import java.awt.event.*;
    import javax.swing.*;
     
    class Project4 extends JFrame{
      public static void main(String []args) throws IOException{
        SwingUtilities.invokeLater(new Runnable() {
          public void run() {
            new GUIClass();
          }
        });
      }
    }

    Any help is appreciated.
    Thanks


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: JPanel GridLayout isn't working

    won't work for the JPanel
    Please explain what happens. What does "won't work" mean?

  3. #3
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    Default Re: JPanel GridLayout isn't working

    Technically it works I don't get any errors but the components in all my JPanels, 1 button and 1 label, are added horizontally instead of vertically. I want the label below the button on each seperate JPanel and it is showing up to the left instead. My gridlayout format looks correct to me so I am confused as to why it isn't following the format I set.

  4. #4
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    Default Re: JPanel GridLayout isn't working

    *right not left my mistake their. The button is on the left, the label is on the right.

  5. #5
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    Default Re: JPanel GridLayout isn't working

    Nevermind I figured it out.

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