用java编写一个简单的学生管理系统,可以实现一些基本的添加,删除,查找修改功能。
时间: 2024-03-26 14:36:17 浏览: 10
好的,我可以帮你解答这个问题。首先,你需要定义一个学生类,包含学生的姓名、学号、性别、年龄等信息。然后,你可以使用ArrayList来存储学生信息。下面是一个简单的示例代码:
```java
import java.util.ArrayList;
import java.util.Scanner;
public class StudentManagementSystem {
private static ArrayList<Student> studentList = new ArrayList<>();
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
while (true) {
System.out.println("请选择操作:1.添加学生 2.删除学生 3.修改学生信息 4.查找学生信息 5.退出");
int choice = scanner.nextInt();
switch (choice) {
case 1:
addStudent();
break;
case 2:
deleteStudent();
break;
case 3:
updateStudent();
break;
case 4:
findStudent();
break;
case 5:
System.out.println("退出程序");
System.exit(0);
break;
default:
System.out.println("无效的选择");
break;
}
}
}
private static void addStudent() {
Scanner scanner = new Scanner(System.in);
System.out.println("请输入学生姓名:");
String name = scanner.nextLine();
System.out.println("请输入学生学号:");
String id = scanner.nextLine();
System.out.println("请输入学生性别:");
String gender = scanner.nextLine();
System.out.println("请输入学生年龄:");
int age = scanner.nextInt();
Student student = new Student(name, id, gender, age);
studentList.add(student);
System.out.println("添加成功!");
}
private static void deleteStudent() {
Scanner scanner = new Scanner(System.in);
System.out.println("请输入要删除的学生学号:");
String id = scanner.nextLine();
for (Student student : studentList) {
if (student.getId().equals(id)) {
studentList.remove(student);
System.out.println("删除成功!");
return;
}
}
System.out.println("未找到该学生!");
}
private static void updateStudent() {
Scanner scanner = new Scanner(System.in);
System.out.println("请输入要修改的学生学号:");
String id = scanner.nextLine();
for (Student student : studentList) {
if (student.getId().equals(id)) {
System.out.println("请输入学生姓名:");
String name = scanner.nextLine();
System.out.println("请输入学生性别:");
String gender = scanner.nextLine();
System.out.println("请输入学生年龄:");
int age = scanner.nextInt();
student.setName(name);
student.setGender(gender);
student.setAge(age);
System.out.println("修改成功!");
return;
}
}
System.out.println("未找到该学生!");
}
private static void findStudent() {
Scanner scanner = new Scanner(System.in);
System.out.println("请输入要查找的学生学号:");
String id = scanner.nextLine();
for (Student student : studentList) {
if (student.getId().equals(id)) {
System.out.println(student);
return;
}
}
System.out.println("未找到该学生!");
}
}
class Student {
private String name;
private String id;
private String gender;
private int age;
public Student(String name, String id, String gender, int age) {
this.name = name;
this.id = id;
this.gender = gender;
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
@Override
public String toString() {
return "学生信息:" +
"姓名='" + name + '\'' +
", 学号='" + id + '\'' +
", 性别='" + gender + '\'' +
", 年龄=" + age;
}
}
```
以上代码实现了添加学生、删除学生、修改学生信息、查找学生信息等基本功能。当然,如果你有更多的需求,可以根据实际情况进行修改和完善。