我的代码需要帮助。我停留在2（查看学生记录），我们只允许使用数组，而不允许使用数组列表或链接列表。任何建议和帮助都可以。

以下是说明：编写一个菜单驱动程序，执行以下操作：

1.添加记录 - 可以将N个学生记录添加到列表中（ID编号，姓名，课程，年份）

2.查看记录-可以按ID号、按课程、按课程和年份查看记录-或查看全部

3.更新记录 - 可以编辑/修改记录属性，不包括ID

4.Delete-可以删除学生记录

这是我的代码:

import java.util.Scanner;

public class StudentArray {

public static void main(String[] args){

    getMenu();

}
public static void getMenu( ){
    Student[] stud = new Student[100];

    Scanner sc = new Scanner(System.in);
    int select;
    System.out.println("1. Add Student Record");
    System.out.println("2. View Student Record");
    System.out.println("3. Update Student Record");
    System.out.println("4. Delete Student Record");
    System.out.println("0. Exit");
    select = sc.nextInt();

    switch (select){
        case 1:
            addStud(stud);
            getMenu();
            break;
        case 2:
            viewStud(stud);
            getMenu();
            break;
        case 3:
            break;
        case 4:
            break;
        case 0:
            break;
        default:
    }

}
public static void addStud(Student[] stud){
    Scanner sc = new Scanner(System.in);
     int numID, year;
     String userName, course;

    int addMore;
    int i = 0;
    do{

        System.out.println("1. Enter Student ID: ");
         numID = sc.nextInt();
        sc.nextLine();
        System.out.println("2. Enter Student Name");
         userName = sc.nextLine();
        System.out.println("3. Enter Student Course");
         course = sc.nextLine();
        System.out.println("4. Enter Student Year");
         year = sc.nextInt();
         stud[i] = new Student(numID, year, userName, course);
        ++i;

        System.out.println("To add another Student Record Press 1");
        addMore = sc.nextInt();
    }while (addMore == 1 );

}
public static void viewStud(Student[] stud){
    for(int x = 0; x < stud.length ; ++x){
        System.out.println("1. Student ID: " + stud[x].getNumID());
        System.out.println("2. Student Name: " + stud[x].getUserName());
        System.out.println("3. Student Course: " + stud[x].getCourse());
        System.out.println("4. Student Year: " + stud[x].getYear() + "\n");
    }

}
}

我的学生班级：

public class Student {

private int numID, year;
private String userName, course;

public Student(int numID, int year, String userName, String course) {

    this.numID = numID;
    this.year = year;
    this.userName = userName;
    this.course = course;

}


public int getNumID() {
    return numID;
}

public void setNumID(int numID) {
    this.numID = numID;
}

public int getYear() {
    return year;
}

public void setYear(int year) {
    this.year = year;
}

public String getUserName() {
    return userName;
}

public void setUserName(String userName) {
    this.userName = userName;
}

public String getCourse() {
    return course;
}

public void setCourse(String course) {
    this.course = course;
}

}

你好，谢谢你，SNJ，

我删除了getMenu方法，并将代码放在主instead.But我无法将学生数组和i设置为静态

import java.util.Scanner;

公共类学生数组{

    public static void main(String[] args) {

        static Student[] stud = new Student[100];
        static int i = 0;

        Scanner sc = new Scanner(System.in);
        while (true) {

            int select;
            System.out.println("1. Add Student Record");
            System.out.println("2. View Student Record");
            System.out.println("3. Update Student Record");
            System.out.println("4. Delete Student Record");
            System.out.println("0. Exit");
            select = sc.nextInt();

            switch (select) {
                case 1:
                    addStud(stud);
                    break;
                case 2:
                    viewStud(stud);
                    break;
                case 3:
                    break;
                case 4:
                    break;
                case 0:
                    return;
                default:
                    System.out.println("Invalid Option");
            }
        }

    }

    public static void addStud(Student[] stud) {
        Scanner sc = new Scanner(System.in);
        int numID, year;
        String userName, course;

        int addMore;

        do {

            System.out.println("1. Enter Student ID: ");
            numID = sc.nextInt();
            sc.nextLine();
            System.out.println("2. Enter Student Name");
            userName = sc.nextLine();
            System.out.println("3. Enter Student Course");
            course = sc.nextLine();
            System.out.println("4. Enter Student Year");
            year = sc.nextInt();
            stud[i] = new Student(numID, year, userName, course);
            ++i;

            System.out.println("To add another Student Record Press 1");
            addMore = sc.nextInt();
        } while (addMore == 1);

    }

    public static void viewStud(Student[] stud) {

        for (Student element : stud) {
            if (null != element) {
                System.out.println("1. Student ID: " + element.getNumID());
                System.out.println("2. Student Name: " + element.getUserName());
                System.out.println("3. Student Course: " + element.getCourse());
                System.out.println("4. Student Year: " + element.getYear() + "\n");
            }
        }

    }