CIS 260 TestGridBagLayout1.java

Code

/*
    TestGridBagLayout1.java
    CIS 260
    2006-02-22
    David Klick

    Demonstration of basic GridBagLayout.
*/

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class TestGridBagLayout1 extends JFrame {
    public static void main(String[] args) {
        TestGridBagLayout1 app = new TestGridBagLayout1();
        app.setDefaultCloseOperation(EXIT_ON_CLOSE);
        app.init();
    }

    public void init() {
        int i;
        JButton btn[] = new JButton[4];
        Container c = getContentPane();
        c.setLayout(new GridBagLayout());
        GridBagConstraints gb = new GridBagConstraints();

        for (i=0; i<btn.length; i++) {
            btn[i] = new JButton("Button #" + (i+1));
            gb.gridy = i/2;
            gb.gridx = i%2;
            c.add(btn[i], gb);
        }

        setSize(200, 200);
        setVisible(true);      
    }
}