在数组列表中搜索

问题描述

目前我有两个班级.一个 Classroom 类和一个 School 类.我想在 School 类 public void showClassRoomDetails 中编写一个方法，该方法仅使用教师姓名来查找教室详细信息.

Currently I have two classes. A Classroom class and a School class. I would like to write a method in the School class public void showClassRoomDetails which would find the classroom details by only using the teacherName.

例如TeacherName = Daniel className = Science

e.g.teacherName = Daniel className = Science

teacherName = Bob className = Maths

teacherName = Bob className = Maths

所以当我输入 Bob 时，它会打印出 Bob 和 Maths

so when I input Bob, it would print out Bob and Maths

很多，谢谢

public class Classroom
{
private String classRoomName;
private String teacherName;

public void setClassRoomName(String newClassRoomName)
{
    classRoomName = newClassRoomName;

}

public String returnClassRoomName()
{
    return classRoomName;
}

public void setTeacherName(String newTeacherName)
{
    teacherName = newTeacherName;

}

public String returnTeacherName()
{
    return teacherName;
}
}





import java.util.ArrayList;

public class School
{
private ArrayList<Classroom> classrooms;
private String classRoomName;
private String teacherName;

public School()
{
    classrooms =  new ArrayList<Classroom>();
}

public void addClassRoom(Classroom newClassRoom, String theClassRoomName)
{
    classrooms.add(newClassRoom);
    classRoomName = theClassRoomName;
}

public void addTeacherToClassRoom(int classroomId, String TeacherName)
{
    if (classroomId < classrooms.size() ) {
        classrooms.get(classroomId).setTeacherName(TeacherName);
    }
}

public void showClassRoomDetails
{
    //loop
   System.out.println(returnClassRoomName);
   System.out.println(returnTeacherName);
}
}

推荐答案

您真的需要这里的列表吗?包含课堂的地图 - 教师协会对您想要实现的目标更有帮助.但是你的代码中也有一些奇怪的地方:例如，你为什么在你的 School 类中持有一个 classRoomName 和 TeacherName 作为实例变量?

Do you really need a list here ?A Map holding classroom - teacher associations would be more helpful for what you're trying to achieve.But there are also strange things in your code: for instance, why do you hold a classRoomName and teacherName as instance variables in your School class ?

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