jdbc的安装，使用，未出现运行

Question

为何没有显示运行，下面是源代码
package com.fk.jdbc;
import java.sql.DriverManger;

public class demo {
public static void main(String[] args) throws ClassNotFoundException {
Class.forName("com.mysql.jc.jdbc.Driver");

    String url = "jdbc:mysql://localhost:3306/db1";
    String username = "root";
    String password = "1234";

    Connection conn = DriverManger.getConnection(url,username,password);

    String sql = "update emp1 set salary = 5000 where id = 1";

    Statement stat = conn.createStatement();
    int count = stat.excuteUpdate(sql);

    System.out.println(count);
    stat.close();
    conn.close();


}

}

Answer 1

有具体运行截图吗?