task 9

package task9;

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

public class preparedstmt {
    // Database credentials and URL
    static final String JDBC_URL = "jdbc:mysql://localhost:3306/varshitha"; // Replace with your database name
    static final String JDBC_USER = "root"; // Replace with your MySQL username
    static final String JDBC_PASSWORD = "root"; // Replace with your MySQL password

    public static void main(String[] args) {
        // SQL query to insert data into the Students table
        String insertSQL = "INSERT INTO Students (name, age, grade) VALUES (?, ?, ?)";

        // Try with resources to automatically close the connection and statement
        try (Connection connection = DriverManager.getConnection(JDBC_URL, JDBC_USER, JDBC_PASSWORD);
             PreparedStatement preparedStatement = connection.prepareStatement(insertSQL)) {

            // Insert first student
            preparedStatement.setString(1, "Alice");
            preparedStatement.setInt(2, 20);
            preparedStatement.setString(3, "A");
            preparedStatement.executeUpdate();
            System.out.println("Inserted first student: Alice");

            // Insert second student
            preparedStatement.setString(1, "Bob");
            preparedStatement.setInt(2, 22);
            preparedStatement.setString(3, "B");
            preparedStatement.executeUpdate();
            System.out.println("Inserted second student:s Bob");

        } catch (SQLException e) {
            System.out.println("SQL Exception: " + e.getMessage());
        }
    }
}