swing1.java

java 初学者学习实例

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

public class Swing1 
{
  public static void main(String args[])
  {
     JButton jbutton = new JButton("轻量组件按钮");
	 JTextArea jtextarea = new JTextArea("轻量文本区",20,20);
	 JFrame jframe = new JFrame("根窗体");
	 jframe.setSize(200,300);jframe.setBackground(Color.blue);
	 jframe.setVisible(true);jframe.pack();
	 jframe.addWindowListener(new WindowAdapter()
	 {public void windowClosing(WindowEvent e)
	 { System.exit(0);}});
	 Container contentpane = jframe.getContentPane();
	 contentpane.add(jbutton,BorderLayout.SOUTH);
	 contentpane.add(jtextarea,BorderLayout.CENTER);
	 jframe.pack();
	 
  }
}