java代码实例第33课

test033.java

package pack02;

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.WindowConstants;

public class test033 extends JFrame
{

  public static void main(String[] args)
  {
    new test033();

  }

  public test033()
  {
    this.setTitle("多选框");
    this.setLayout(new BorderLayout());
    Container container1 = this.getContentPane();

    JPanel panel1 = new JPanel();
    container1.add(panel1,BorderLayout.NORTH);
    JTextArea textArea1 = new JTextArea(10,30);
    JScrollPane scrollPane1 = new JScrollPane(textArea1);
    panel1.add(scrollPane1);


    JPanel panel2 = new JPanel();
    JCheckBox checkBox1 = new JCheckBox("多选");
    panel2.add(checkBox1);
    container1.add(panel2,BorderLayout.SOUTH);
    checkBox1.addActionListener(new ActionListener()
    {

      @Override
      public void actionPerformed(ActionEvent e)
      {
        textArea1.append("复选框被选中 \n");
        textArea1.append("\n");
      }
    });


    this.setSize(500,500);
    this.setVisible(true);
    this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
  }
}