Java编写简单的学生管理系统
时间: 2023-12-30 07:04:01 浏览: 29
好的,这个学生管理系统可以包括以下功能:
1. 添加学生信息
2. 删除学生信息
3. 修改学生信息
4. 查询学生信息
5. 显示所有学生信息
以下是一个简单的Java代码示例:
```java
import java.util.ArrayList;
import java.util.Scanner;
public class StudentManagementSystem {
private ArrayList<Student> students = new ArrayList<>();
public 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("请输入学生年龄:");
int age = scanner.nextInt();
System.out.println("请输入学生性别:");
String gender = scanner.next();
Student student = new Student(name, age, gender);
students.add(student);
System.out.println("添加成功!");
}
public void deleteStudent() {
Scanner scanner = new Scanner(System.in);
System.out.println("请输入要删除的学生姓名:");
String name = scanner.nextLine();
for (int i = 0; i < students.size(); i++) {
if (students.get(i).getName().equals(name)) {
students.remove(i);
System.out.println("删除成功!");
return;
}
}
System.out.println("未找到该学生!");
}
public void modifyStudent() {
Scanner scanner = new Scanner(System.in);
System.out.println("请输入要修改的学生姓名:");
String name = scanner.nextLine();
for (int i = 0; i < students.size(); i++) {
if (students.get(i).getName().equals(name)) {
System.out.println("请输入修改后的学生姓名:");
String newName = scanner.nextLine();
System.out.println("请输入修改后的学生年龄:");
int newAge = scanner.nextInt();
System.out.println("请输入修改后的学生性别:");
String newGender = scanner.next();
students.get(i).setName(newName);
students.get(i).setAge(newAge);
students.get(i).setGender(newGender);
System.out.println("修改成功!");
return;
}
}
System.out.println("未找到该学生!");
}
public void queryStudent() {
Scanner scanner = new Scanner(System.in);
System.out.println("请输入要查询的学生姓名:");
String name = scanner.nextLine();
for (int i = 0; i < students.size(); i++) {
if (students.get(i).getName().equals(name)) {
System.out.println(students.get(i));
return;
}
}
System.out.println("未找到该学生!");
}
public void displayAllStudents() {
for (int i = 0; i < students.size(); i++) {
System.out.println(students.get(i));
}
}
public static void main(String[] args) {
StudentManagementSystem system = new StudentManagementSystem();
Scanner scanner = new Scanner(System.in);
while (true) {
System.out.println("请选择操作:");
System.out.println("1. 添加学生信息");
System.out.println("2. 删除学生信息");
System.out.println("3. 修改学生信息");
System.out.println("4. 查询学生信息");
System.out.println("5. 显示所有学生信息");
int choice = scanner.nextInt();
switch (choice) {
case 1:
system.addStudent();
break;
case 2:
system.deleteStudent();
break;
case 3:
system.modifyStudent();
break;
case 4:
system.queryStudent();
break;
case 5:
system.displayAllStudents();
break;
default:
System.out.println("输入有误,请重新输入!");
}
}
}
}
class Student {
private String name;
private int age;
private String gender;
public Student(String name, int age, String gender) {
this.name = name;
this.age = age;
this.gender = gender;
}
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 getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
@Override
public String toString() {
return "姓名:" + name + ",年龄:" + age + ",性别:" + gender;
}
}
```