java delete database

자바 삭제

package main.java.com.study.jdbc.main.dml;

import main.java.com.study.jdbc.util.DBConnection2;


import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Scanner;

public class test4 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("삭제할 계정의 id 값을 입력하세요: ");
        int id = sc.nextInt();

        Connection con = DBConnection2.getInstance().getConnection();
        String sql = "delete from study_mst where id = ?";
        try {
            PreparedStatement pstmt = con.prepareStatement(sql);
            pstmt.setInt(1, id);
            int successCount = pstmt.executeUpdate();
            System.out.println(successCount + "건 수정완료!");
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

결과

삭제완료