这是一个Java学生管理系统的源码示例:,,“
java,import java.util.ArrayList;,import java.util.Scanner;,,class Student {, String name;, int age;, String id;,, public Student(String name, int age, String id) {, this.name = name;, this.age = age;, this.id = id;, },},,public class StudentManagementSystem {, public static void main(String[] args) {, ArrayList students = new ArrayList();, Scanner scanner = new Scanner(System.in);,, while (true) {, System.out.println("1. 添加学生");, System.out.println("2. 删除学生");, System.out.println("3. 修改学生信息");, System.out.println("4. 查看所有学生");, System.out.println("5. 退出系统");, System.out.print("请输入操作序号:");, int choice = scanner.nextInt();,, switch (choice) {, case 1:, System.out.print("请输入学生姓名:");, String name = scanner.next();, System.out.print("请输入学生年龄:");, int age = scanner.nextInt();, System.out.print("请输入学生学号:");, String id = scanner.next();, students.add(new Student(name, age, id));, System.out.println("学生添加成功!");, break;, case 2:, System.out.print("请输入要删除的学生学号:");, String deleteId = scanner.next();, boolean found = false;, for (Student student : students) {, if (student.id.equals(deleteId)) {, students.remove(student);, System.out.println("学生删除成功!");, found = true;, break;, }, }, if (!found) {, System.out.println("未找到该学生!");, }, break;, case 3:, System.out.print("请输入要修改的学生学号:");, String updateId = scanner.next();, boolean updated = false;, for (Student student : students) {, if (student.id.equals(updateId)) {, System.out.print("请输入新的学生姓名:");, String newName = scanner.next();, System.out.print("请输入新的学生年龄:");, int newAge = scanner.nextInt();, student.name = newName;, student.age = newAge;, System.out.println("学生信息修改成功!");, updated = true;, break;, }, }, if (!updated) {, System.out.println("未找到该学生!");, }, break;, case 4:, System.out.println("所有学生信息如下:");, for (Student student : students) {, System.out.println("姓名:" + student.name + ",年龄:" + student.age + ",学号:" + student.id);, }, break;, case 5:, System.out.println("感谢使用学生管理系统!");, scanner.close();, return;, default:, System.out.println("无效的操作序号,请重新输入!");, break;, }, }, },},
“// 学生类 class Student { private String name; private int age; private String id; public Student(String name, int age, String id) { this.name = name; this.age = age; this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getId() { return id; } public void setId(String id) { this.id = id; } @Override public String toString() { return "Student{" + "name='" + name + ''' + ", age=" + age + ", id='" + id + ''' + '}'; } } // 学生管理类 class StudentManager { private List<Student> students; public StudentManager() { students = new ArrayList<>(); } public void addStudent(Student student) { students.add(student); } public void removeStudent(String id) { students.removeIf(student > student.getId().equals(id)); } public Student findStudent(String id) { for (Student student : students) { if (student.getId().equals(id)) { return student; } } return null; } public void printAllStudents() { for (Student student : students) { System.out.println(student); } } } // 主程序 public class Main { public static void main(String[] args) { StudentManager manager = new StudentManager(); manager.addStudent(new Student("张三", 20, "001")); manager.addStudent(new Student("李四", 21, "002")); manager.addStudent(new Student("王五", 22, "003")); System.out.println("所有学生信息:"); manager.printAllStudents(); System.out.println("查找ID为002的学生:"); Student student = manager.findStudent("002"); if (student != null) { System.out.println(student); } else { System.out.println("未找到该学生"); } System.out.println("删除ID为001的学生:"); manager.removeStudent("001"); manager.printAllStudents(); } }
这个简单的学生管理系统包括了添加、删除、查找和打印所有学生的功能,你可以根据需要扩展更多功能,例如修改学生信息、按照年龄排序等。
小伙伴们,上文介绍了“java 学生管理系统源码”的内容,你了解清楚吗?希望对你有所帮助,任何问题可以给我留言,让我们下期再见吧。
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