java学生管理系统删除代码
时间: 2023-08-10 20:04:14 浏览: 58
下面是一个简单的 Java 学生管理系统删除学生信息的代码:
```java
import java.util.ArrayList;
import java.util.Scanner;
public class StudentManagementSystem {
private ArrayList<Student> students;
public StudentManagementSystem() {
students = new ArrayList<>();
}
public void addStudent(Student student) {
students.add(student);
}
public void removeStudent(String id) {
for (int i = 0; i < students.size(); i++) {
if (students.get(i).getId().equals(id)) {
students.remove(i);
System.out.println("删除成功!");
return;
}
}
System.out.println("删除失败,未找到该学生!");
}
public void printAllStudents() {
for (Student student : students) {
System.out.println(student);
}
}
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
StudentManagementSystem system = new StudentManagementSystem();
while (true) {
System.out.println("请输入操作:1-添加学生,2-删除学生,3-查看所有学生,0-退出");
int choice = scanner.nextInt();
switch (choice) {
case 1:
System.out.println("请输入学生姓名:");
String name = scanner.next();
System.out.println("请输入学生学号:");
String id = scanner.next();
Student student = new Student(name, id);
system.addStudent(student);
System.out.println("学生添加成功!");
break;
case 2:
System.out.println("请输入要删除的学生学号:");
String delId = scanner.next();
system.removeStudent(delId);
break;
case 3:
System.out.println("所有学生信息如下:");
system.printAllStudents();
break;
case 0:
System.out.println("谢谢使用!");
System.exit(0);
break;
default:
System.out.println("输入错误,请重新输入!");
}
}
}
}
class Student {
private String name;
private String id;
public Student(String name, String id) {
this.name = name;
this.id = id;
}
public String getName() {
return name;
}
public String getId() {
return id;
}
@Override
public String toString() {
return "姓名:" + name + ",学号:" + id;
}
}
```
以上代码实现了一个简单的学生管理系统,用户可以通过输入数字选择要进行的操作,包括添加学生、删除学生、查看所有学生等。删除学生的操作会根据输入的学号删除对应的学生信息。如果找不到该学号对应的学生,则会提示删除失败。