Rows affected when updating data in database table : Preparedstatement « Database « Java Tutorial

1. Java Tutorial
2. Database
3. Preparedstatement

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;

public class Main {
  public static void main(String[] args) throws Exception {
    Class.forName("com.mysql.jdbc.Driver");
    Connection connection = DriverManager.getConnection("jdbc:mysql://localhost/book", "root", "");

    PreparedStatement ps = connection.prepareStatement("UPDATE books SET title = ? WHERE id = ?");
    ps.setString(1, "Java");
    ps.setInt(2, 1);
    int rows = ps.executeUpdate();

    System.out.printf("%d row(s) updated!", rows);
    connection.close();
  }
}