Source Code : GridBagLayout with gridwidth and gridheight constraints

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GridBagLayout with gridwidth and gridheight constraints

   

import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class GridBagWithGridWidthHeight {

  public static void main(String[] args) {
    JFrame f = new JFrame(
        "Demonstrates the use of gridwidth, gridheight constraints");
    JPanel p = new JPanel(new GridBagLayout());

    GridBagConstraints c = new GridBagConstraints();
    c.insets = new Insets(2, 2, 2, 2);
    c.weighty = 1.0;
    c.weightx = 1.0;
    c.gridx = 0;
    c.gridy = 0;
    c.gridheight = 2; // span across 2 rows
    p.add(new JButton("Java"), c);
    c.gridx = 1;
    c.gridheight = 1; // set back to 1 row
    c.gridwidth = 2; // span across 2 columns
    p.add(new JButton("Source"), c);
    c.gridy = 1;
    c.gridwidth = 1; // set back to 1 column
    p.add(new JButton("and"), c);
    c.gridx = 2;
    p.add(new JButton("Support."), c);

    WindowListener wndCloser = new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    };
    f.addWindowListener(wndCloser);

    f.getContentPane().add(p);
    f.setSize(600, 200);
    f.show();
  }
}


           
         
    
    
  

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