import java.sql.*;  
// implementing DriverAction interface
class JdbcExample implements DriverAction{  
// implementing deregister method of DriverAction interface
@Override
public void deregister() {
System.out.println("Driver deregistered");
}
public static void main(String args[]){
try{
// Creating driver instance
Driver driver = new com.mysql.jdbc.Driver();
// Creating Action Driver
DriverAction da = new JdbcExample();
// Registering driver by passing driver and driverAction
DriverManager.registerDriver(driver, da);
// Creating connection
Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/student","root","mysql");
//Here student is database name, root is username and password is mysql
Statement stmt=con.createStatement(); 
// Executing SQL query
ResultSet rs=stmt.executeQuery("select * from user");  
while(rs.next()){  
System.out.println(rs.getInt(1)+""+rs.getString(2)+""+rs.getString(3));  
}
// Closing connection
con.close();  
// Calling deregisterDriver method
DriverManager.deregisterDriver(driver);
}catch(Exception e){ System.out.println(e);}  
}  

}  

1  Arun  25
2  irfan  22
3  Neraj kumar  25
Driver deregistered