我是java新手，如何在Intelij中编译包
这是我的目录

它在www.example.com上运行得很好Main.java
为了编译，我首先运行
javac people/People.java
然后我编译javac Main.java，它返回Main.java：8：错误：软件包com.amigoscode.people不存在
Main.java

package com.amigoscode;

// Press Shift twice to open the Search Everywhere dialog and type `show whitespaces`,
// then press Enter. You can now see whitespace characters in your code.

import java.util.Scanner;
import com.amigoscode.people.People;

public class Main {

    public static void main(String[] args) {
        People p = new People();
        System.out.println(p.fullName());
    }

}

People.java

package com.amigoscode.people;

public class People {

    public String fname = "John";
    public String lname = "Doe";
    public int age = 24;

    public String fullName() {
        String fullName = fname + " " + lname;
        return fullName;
    }

}

非常感谢。