Java问题好难，怎么做

Question

怎么用Java写 ：一个班级包含一些学生，每个学生有固定的学号与姓名，有JAVA，计算机网络，英语三门课的成绩。试采用面向对象程序设计方法，实现如下功能：
分别找出班上总成绩及单科成绩最高的学生（若有多个，应都找出来），并输出这些学生的信息；分别找出班上至少有一门课成绩低于60分、至少有两门课成绩低于60及三门课成绩均低于60分的学生，并输出这些学生的信息。允许通过输入一个学生的学号或姓名（姓名可能重复，因此可能找到多个学生）寻找学生，并输出其信息（或找到多个，则都输出）。

Answer 1

该回答引用chatgpt:有问题多交流

import java.util.ArrayList;
import java.util.List;

public class Student {
    private String name;
    private int id;
    private int javaScore;
    private int computerNetworkScore;
    private int englishScore;

    public Student(String name, int id, int javaScore, int computerNetworkScore, int englishScore) {
        this.name = name;
        this.id = id;
        this.javaScore = javaScore;
        this.computerNetworkScore = computerNetworkScore;
        this.englishScore = englishScore;
    }

    public String getName() {
        return name;
    }

    public int getId() {
        return id;
    }

    public int getJavaScore() {
        return javaScore;
    }

    public int getComputerNetworkScore() {
        return computerNetworkScore;
    }

    public int getEnglishScore() {
        return englishScore;
    }

    public int getTotalScore() {
        return javaScore + computerNetworkScore + englishScore;
    }

    public boolean isScoreLow() {
        return javaScore < 60 || computerNetworkScore < 60 || englishScore < 60;
    }

    public boolean isTwoScoreLow() {
        int lowCount = 0;
        if (javaScore < 60) {
            lowCount++;
        }
        if (computerNetworkScore < 60) {
            lowCount++;
        }
        if (englishScore < 60) {
            lowCount++;
        }
        return lowCount >= 2;
    }

    public boolean isAllScoreLow() {
        return javaScore < 60 && computerNetworkScore < 60 && englishScore < 60;
    }

    @Override
    public String toString() {
        return "Student{" +
                "name='" + name + '\'' +
                ", id=" + id +
                ", javaScore=" + javaScore +
                ", computerNetworkScore=" + computerNetworkScore +
                ", englishScore=" + englishScore +
                '}';
    }

    public static void main(String[] args) {
        List<Student> studentList = new ArrayList<>();
        studentList.add(new Student("Alice", 1001, 80, 75, 90));
        studentList.add(new Student("Bob", 1002, 90, 85, 80));
        studentList.add(new Student("Charlie", 1003, 70, 60, 65));
        studentList.add(new Student("David", 1004, 85, 65, 55));
        studentList.add(new Student("Eve", 1005, 60, 75, 70));

        List<Student> totalScoreMaxStudents = new ArrayList<>();
        int totalScoreMax = 0;
        for (Student student : studentList) {
            int totalScore = student.getTotalScore();
            if (totalScore > totalScoreMax) {
                totalScoreMaxStudents.clear();
                totalScoreMaxStudents.add(student);
                totalScoreMax = totalScore;
            } else if (totalScore == totalScoreMax) {
                totalScoreMaxStudents.add(student);
            }
        }
        System.out.println("Total score max students: ");
        for (Student student : totalScoreMaxStudents) {
            System.out.println(student);
        }

        List<Student> javaScoreMaxStudents = new ArrayList<>();
        int javaScoreMax = 0;
        for (Student student : studentList) {
            int javaScore = student.getJavaScore();
            if (javaScore > javaScoreMax) {
                javaScoreMaxStudents.clear();
                javaScoreMaxStudents.add(student);
                javaScoreMax = javaScore;
            } else if (javaScore == javaScoreMax) {
            javaScoreMaxStudents.add(student);
        }
    }
    System.out.println("Java score max students: ");
    for (Student student : javaScoreMaxStudents) {
        System.out.println(student);
    }

    List<Student> computerNetworkScoreMaxStudents = new ArrayList<>();
    int computerNetworkScoreMax = 0;
    for (Student student : studentList) {
        int computerNetworkScore = student.getComputerNetworkScore();
        if (computerNetworkScore > computerNetworkScoreMax) {
            computerNetworkScoreMaxStudents.clear();
            computerNetworkScoreMaxStudents.add(student);
            computerNetworkScoreMax = computerNetworkScore;
        } else if (computerNetworkScore == computerNetworkScoreMax) {
            computerNetworkScoreMaxStudents.add(student);
        }
    }
    System.out.println("Computer network score max students: ");
    for (Student student : computerNetworkScoreMaxStudents) {
        System.out.println(student);
    }

    List<Student> englishScoreMaxStudents = new ArrayList<>();
    int englishScoreMax = 0;
    for (Student student : studentList) {
        int englishScore = student.getEnglishScore();
        if (englishScore > englishScoreMax) {
            englishScoreMaxStudents.clear();
            englishScoreMaxStudents.add(student);
            englishScoreMax = englishScore;
        } else if (englishScore == englishScoreMax) {
            englishScoreMaxStudents.add(student);
        }
    }
    System.out.println("English score max students: ");
    for (Student student : englishScoreMaxStudents) {
        System.out.println(student);
    }

    List<Student> scoreLowStudents = new ArrayList<>();
    for (Student student : studentList) {
        if (student.isScoreLow()) {
            scoreLowStudents.add(student);
        }
    }
    System.out.println("Score low students: ");
    for (Student student : scoreLowStudents) {
        System.out.println(student);
    }

    List<Student> twoScoreLowStudents = new ArrayList<>();
    for (Student student : studentList) {
        if (student.isTwoScoreLow()) {
            twoScoreLowStudents.add(student);
        }
    }
    System.out.println("Two score low students: ");
    for (Student student : twoScoreLowStudents) {
        System.out.println(student);
    }

    List<Student> allScoreLowStudents = new ArrayList<>();
    for (Student student : studentList) {
        if (student.isAllScoreLow()) {
            allScoreLowStudents.add(student);
        }
    }
    System.out.println("All score low students: ");
    for (Student student : allScoreLowStudents) {
        System.out.println(student);
    }

    String name = "Alice";
    List<Student> studentsByName = new ArrayList<>();
    for (Student student : studentList) {
        if (student.getName().equals(name)) {
            studentsByName.add(student);
        }
    }
    System.out.println("Students by name: " + name);
    for (Student student : studentsByName) {
        System.out.println(student);
    }

    int id = 1002;
    List<Student> studentsById = new ArrayList<>();
    for (Student student : studentList) {
        if (student.getId() == id) {
            studentsById.add(student);
        }
    }
    System.out.println("Students by ID: " + id);
    for (Student student : studentsById) {
        System.out.println(student);
    }
}
}

上述代码中，Student类表示一个学生，包含学号、姓名和三门课的成绩。main方法中创建了一个学生列表，然后分别找出班上总成绩及单科成绩最高的学