import java.awt.GridBagLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
public class Main {
public static void main(String[] argv) throws Exception {
JFrame frame = new JFrame();
GridBagLayout gbl = new GridBagLayout();
frame.setLayout(gbl);
frame.add(new JButton("1"));
frame.add(new JButton("2"));
gbl.layoutContainer(frame);
double[][] weights = gbl.getLayoutWeights();
for (int i = 0; i < 2; i++) {
for (int j = 0; j < weights[i].length; j++) {
weights[i][j] = 1;
}
}
gbl.columnWeights = weights[0];
gbl.rowWeights = weights[1];
frame.pack();
frame.setVisible(true);
}
}