这个是朋友作的毕业设计

				package Resource_Selection;								import java.awt.*;				import java.awt.event.*;				import javax.swing.*;								public class first extends JFrame {				  JButton jButton1 = new JButton();				  public first() {				    try {				      jbInit();				    }				    catch(Exception e) {				      e.printStackTrace();				    }								  }				  private void jbInit() throws Exception {				    jButton1.setText("jButton1");				    this.getContentPane().add(jButton1,null);								  }												}