gridbaglayoutpanel.java

Java实例入门

package layouttest;

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

public class GridBagLayoutPanel extends JPanel {
  GridBagLayout gridBagLayout1 = new GridBagLayout();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  JButton jButton3 = new JButton();
  JButton jButton4 = new JButton();
  JButton jButton5 = new JButton();
  JButton jButton6 = new JButton();

  public GridBagLayoutPanel() {
    try {
      jbInit();
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
  }
  void jbInit() throws Exception {
    jButton1.setText("1");
    this.setLayout(gridBagLayout1);
    jButton2.setText("2");
    jButton3.setText("3");
    jButton4.setText("4");
    jButton5.setText("5");
    jButton6.setText("6");
    this.add(jButton1,  new GridBagConstraints(0, 0, 1, 1, 10.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
    this.add(jButton2,   new GridBagConstraints(1, 0, 1, 1, 20.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
    this.add(jButton3,   new GridBagConstraints(0, 1, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL, new Insets(0, 0, 0, 0), 0, 0));
    this.add(jButton4,   new GridBagConstraints(0, 2, 1, 1, 0.0, 0.0
            ,GridBagConstraints.SOUTHEAST, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
    this.add(jButton5,   new GridBagConstraints(1, 2, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(0, 0, 0, 0), 0, 32));
    this.add(jButton6,      new GridBagConstraints(2, 0, 1, 3, 0.0, 0.0
            ,GridBagConstraints.SOUTHWEST, GridBagConstraints.NONE, new Insets(20, 10, 20, 10), 0, 88));
  }
}