import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.sql.*;
 class shuom extends JFrame implements ActionListener
{   private condb con=null;
    private ResultSet rs=null;
    private String sql=null;
    private JLabel q1=new JLabel("本軟件操作說明");
    private JTextArea jstx=new JTextArea();   
    
    private JButton d2=new JButton("返回主界面");
    
   public shuom()
  { super("操作說明");
    setSize(400,350);
    setBackground(Color.LIGHT_GRAY);
    this.setLocationRelativeTo(this.getParent());
    setResizable(false);
    Container cont=this.getContentPane();
    cont.setLayout(null);
    
    q1.setBounds(120,20,300,30);
    jstx.setBounds(40,50,300,200);
    jstx.setText("       具體說明見實驗報告");   
    jstx.setEditable(false);
    d2.setBounds(240,260,100,30);
    
    cont.add(q1);
    cont.add(jstx);
    cont.add(d2);
    
    d2.addActionListener(this);

    setVisible(true);

   }
 

public void actionPerformed(ActionEvent ae)
 {   
    if(ae.getActionCommand().equals("返回主界面"))
      dispose();
 } 
}