使用JAVA语言完成实验，以下是实验要求，提供源代码 要求1：使用泛型集合来模拟实现对班级和同学的管理的查询功能。 要求2：分别建立班级类（班级编号、名称、班主任、专业、年级等）和学生类（学号、姓名、年龄、性别）； 要求3：以使用 Map 映射来存储班级和班级内同学，其键为 Class(班级) 类型，值为 List 类型(Student); 要求4：然后遍历输出每个班级所包含的多个学生信息。 要求5：从键盘输入一个学生学号，输出该学生所在班级信息及学生信息。

以下是使用JAVA语言完成的班级和同学管理查询功能的源代码：

班级类 ClassInfo.java：

public class ClassInfo {
    private String classNo;
    private String className;
    private String classTeacher;
    private String major;
    private String grade;

    public ClassInfo(String classNo, String className, String classTeacher, String major, String grade) {
        this.classNo = classNo;
        this.className = className;
        this.classTeacher = classTeacher;
        this.major = major;
        this.grade = grade;
    }

    public String getClassNo() {
        return classNo;
    }

    public void setClassNo(String classNo) {
        this.classNo = classNo;
    }

    public String getClassName() {
        return className;
    }

    public void setClassName(String className) {
        this.className = className;
    }

    public String getClassTeacher() {
        return classTeacher;
    }

    public void setClassTeacher(String classTeacher) {
        this.classTeacher = classTeacher;
    }

    public String getMajor() {
        return major;
    }

    public void setMajor(String major) {
        this.major = major;
    }

    public String getGrade() {
        return grade;
    }

    public void setGrade(String grade) {
        this.grade = grade;
    }

    @Override
    public String toString() {
        return "ClassInfo{" +
                "classNo='" + classNo + '\'' +
                ", className='" + className + '\'' +
                ", classTeacher='" + classTeacher + '\'' +
                ", major='" + major + '\'' +
                ", grade='" + grade + '\'' +
                '}';
    }
}

学生类 Student.java：

public class Student {
    private String stuNo;
    private String stuName;
    private int age;
    private String gender;

    public Student(String stuNo, String stuName, int age, String gender) {
        this.stuNo = stuNo;
        this.stuName = stuName;
        this.age = age;
        this.gender = gender;
    }

    public String getStuNo() {
        return stuNo;
    }

    public void setStuNo(String stuNo) {
        this.stuNo = stuNo;
    }

    public String getStuName() {
        return stuName;
    }

    public void setStuName(String stuName) {
        this.stuName = stuName;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    @Override
    public String toString() {
        return "Student{" +
                "stuNo='" + stuNo + '\'' +
                ", stuName='" + stuName + '\'' +
                ", age=" + age +
                ", gender='" + gender + '\'' +
                '}';
    }
}

主程序 Main.java：

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        // 创建班级和学生列表
        List<Student> stuList1 = new ArrayList<>();
        stuList1.add(new Student("1001", "张三", 20, "男"));
        stuList1.add(new Student("1002", "李四", 21, "女"));
        stuList1.add(new Student("1003", "王五", 22, "男"));
        List<Student> stuList2 = new ArrayList<>();
        stuList2.add(new Student("2001", "赵六", 23, "女"));
        stuList2.add(new Student("2002", "钱七", 24, "男"));
        stuList2.add(new Student("2003", "孙八", 25, "女"));

        // 创建班级列表
        Map<ClassInfo, List<Student>> classMap = new HashMap<>();
        classMap.put(new ClassInfo("001", "计算机1班", "张老师", "计算机科学", "大一"), stuList1);
        classMap.put(new ClassInfo("002", "计算机2班", "李老师", "计算机科学", "大一"), stuList2);

        // 遍历输出每个班级所包含的多个学生信息
        for (Map.Entry<ClassInfo, List<Student>> entry : classMap.entrySet()) {
            ClassInfo classInfo = entry.getKey();
            List<Student> stuList = entry.getValue();
            System.out.println("班级信息：" + classInfo.toString());
            System.out.println("学生信息：");
            for (Student student : stuList) {
                System.out.println(student.toString());
            }
        }

        // 从键盘输入一个学生学号，输出该学生所在班级信息及学生信息
        System.out.println("请输入学生学号：");
        Scanner scanner = new Scanner(System.in);
        String stuNo = scanner.next();
        for (Map.Entry<ClassInfo, List<Student>> entry : classMap.entrySet()) {
            ClassInfo classInfo = entry.getKey();
            List<Student> stuList = entry.getValue();
            for (Student student : stuList) {
                if (student.getStuNo().equals(stuNo)) {
                    System.out.println("班级信息：" + classInfo.toString());
                    System.out.println("学生信息：" + student.toString());
                    return;
                }
            }
        }
        System.out.println("未找到该学生！");
    }
}

这里用到了 Map 映射来存储班级和班级内同学，其键为 ClassInfo 类型，值为 List 类型(Student)。通过遍历 Map 来输出每个班级所包含的学生信息，通过从键盘输入学生学号来查找学生所在班级信息及学生信息。