The insets Constraints for GridBagLayout - Java Swing

Java examples for Swing:GridBagLayout

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Introduction

insets constraint sets the external padding around the component.

It adds spaces around the component.

Demo Code

import java.awt.Container;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;

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

public class Main {
  public static void main(String[] args) {
    JFrame frame = new JFrame("GridBagLayout");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    Container contentPane = frame.getContentPane();
    contentPane.setLayout(new GridBagLayout());

    GridBagConstraints gbc = new GridBagConstraints();

    gbc.fill = GridBagConstraints.BOTH;
    gbc.insets = new Insets(5, 5, 5, 5);
    int count = 1;
    for (int y = 0; y < 3; y++) {
      gbc.gridy = y;/* w ww  . j  a  v a 2  s . c o m*/
      for (int x = 0; x < 3; x++) {
        gbc.gridx = x;
        frame.add(new JButton("Button " + count++), gbc);
      }
    }
    frame.add(new JButton("Button 9"), gbc);
    frame.pack();
    frame.setVisible(true);
  }
}

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