import java.sql.*;
class adi{
	public static void main(String args[]){
		try{
			Class.forName("com.mysql.jdbc.Driver");
			Connection c=DriverManager.getConnection("jdbc:mysql://localhost:3306/adi","root","12345");
			Statement s=c.createStatement();
			s.execute("insert into tab values('two',2,9)");
			s.execute("insert into tab values('three',3,8)");
			ResultSet rs=s.executeQuery("select * from tab");
			while(rs.next()){
				System.out.println(rs.getString(1)+" "+rs.getString(2)+" "+rs.getString(3));
			}
			s.executeUpdate("update tab set marks=3 where roll=3");
			rs=s.executeQuery("select * from tab");
			while(rs.next()){
				System.out.println(rs.getString(1)+" "+rs.getString(2)+" "+rs.getString(3));
			}
		}
		catch(Exception e)
		{
			System.out.println(e);
		}
	}
}