import java.awt.Container;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.Border;
public class MainClass {
public static void main(String[] args) {
JFrame aWindow = new JFrame();
aWindow.setBounds(200, 200, 200, 200);
aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container content = aWindow.getContentPane();
content.add(new GridBagLayoutPanel());
aWindow.setVisible(true);
}
}
class GridBagLayoutPanel extends JPanel {
public GridBagLayoutPanel() {
GridBagLayout gridbag = new GridBagLayout();
GridBagConstraints constraints = new GridBagConstraints();
setLayout(gridbag);
constraints.weightx = constraints.weighty = 10.0;
constraints.fill = constraints.NONE;
constraints.ipadx = 30;
constraints.ipady = 10;
addButton("Press", constraints, gridbag);
constraints.weightx = 5.0;
constraints.fill = constraints.BOTH;
constraints.ipadx = constraints.ipady = 0;
constraints.insets = new Insets(10, 30, 10, 20);
constraints.gridwidth = constraints.RELATIVE;
constraints.gridheight = 2;
addButton("GO", constraints, gridbag);
constraints.insets = new Insets(0, 0, 0, 0);
constraints.gridx = 0;
constraints.fill = constraints.NONE;
constraints.ipadx = 30;
constraints.ipady = 10;
constraints.gridwidth = 1;
constraints.gridheight = 1;
addButton("Push", constraints, gridbag);
}
private void addButton(String label, GridBagConstraints constraints,
GridBagLayout layout) {
Border edge = BorderFactory.createRaisedBevelBorder();
JButton button = new JButton(label);
button.setBorder(edge);
layout.setConstraints(button, constraints);
add(button);
}
}
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