MySQL Updating record from Eclipse

import java.sql.*;
public class my_connect {
	public static void main(String args[]) 
	{  
	try{  
	Class.forName("com.mysql.jdbc.Driver");  
	Connection con=DriverManager.getConnection(  
	"jdbc:mysql://localhost:3306/my_tutorial","root","test");  
	Statement st=con.createStatement();  
	
	// Display record before the update , create restultSet  
	ResultSet rs=st.executeQuery("SELECT * FROM STUDENT WHERE id=3"); 
	
	rs.next();  
	System.out.println(rs.getInt(1)+" "+rs.getString("name") + "  " + rs.getString("mark"));  
	
	// Update the record 
	String query1="UPDATE student set mark=mark+10 where id=3";
	st.executeUpdate(query1);
	System.out.println("Data updated..");
	
	// Display the record 
	rs=st.executeQuery("SELECT * FROM STUDENT WHERE id=3"); 
		
	rs.next();  
	System.out.println(rs.getInt(1)+" "+rs.getString("name") + "  " + rs.getString("mark"));  
		
	con.close();  
	}catch(Exception e){ System.out.println(e);} 
		
	}
}

3 Arnold  85
Data updated..
3 Arnold  95

Updating multiple records