mark.java

这个是我二年级写的一个教务管理系统 大家可以下来

package caoyu;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.sql.*;
class Mark extends JFrame  implements ActionListener {
   //public JRadioButton cname = null;
   public JRadioButton cno = null;
   public JTextField jt = null;
   public JButton btn = null;
   public JTable table = null;
   public Mark() 
   {
      this.initFrame();
      this.setTitle("成绩查询(视图实现)");
      setSize(500,300);
      setVisible(true);
  }
  public void initFrame()
  {
     Container container = this.getContentPane();
      String[][] p = new String[100][6];
      String[] n = {"sno","sname ","cname ","credit ","period ","Mark"};
      table = new JTable(p,n);
      JLayeredPane jlp=new JLayeredPane();
      jlp.setLayout(new GridLayout(1,3));//生成布局
      
      JScrollPane s = new JScrollPane(table);
      container.add(s, BorderLayout.CENTER);
    
    
      cno = new JRadioButton( "学号");

      btn = new JButton( "查询" );
      
      jlp.add( cno);
      
      jlp.add( btn );
      jt = new JTextField( 10 );
      jlp.add( jt );
      container.add(jlp, BorderLayout.NORTH);
      btn.addActionListener(this);

          }
          
        public void actionPerformed(ActionEvent e)
      	    {
      	       try {
      	 	      DBOperatorCourse op = new DBOperatorCourse();
      	 	      
      	 	     
      	 	      ResultSet rs=op.queryCourse4(jt.getText().trim());
      	 	     
      	 	      
      	          for(int i=0;rs.next();i++)
					{
						table.setValueAt(rs.getString(1),i,0);
						table.setValueAt(rs.getString(2),i,1);
						table.setValueAt(rs.getString(3),i,2);
						table.setValueAt(rs.getString(4),i,3);
						table.setValueAt(rs.getString(5),i,4);
					    table.setValueAt(rs.getString(6),i,5);
						
					}
			   rs.close();
               op.conn.close();
               }
               catch(Exception ex) {
                  System.out.println(ex.getMessage());
                  ex.printStackTrace();	
               }
            }
      
  
   public static void main(String args[])
  {
    Mark a=new  Mark();
  }	
  
  }