java实现简单学生管理系统项目

本文实例为大家分享了java实现简单学生管理系统的具体代码，供大家参考，具体内容如下

功能：

1.增加学生
2.查看学生
3.根据学号修改学生信息
4.根据学号查看某一个学生信息
5.根据性别查看同性别的所有学生
6.根据学号删除某一个学生
7.按照学号升序排序(默认)
8.按照年龄降序排序

Student 类- - -学生的javabean类

package com.studentByArray.www;

public class Student {

 //定义一个Student类{学号、姓名、年龄、性别}
 private String Sno;

 private String name;

 private int age;

 private String sex;

 public Student() {
 super();
 // TODO Auto-generated constructor stub
 }

 public Student(String sno, String name, int age, String sex) {
 super();
 Sno = sno;
 this.name = name;
 this.age = age;
 this.sex = sex;
 }

 public String getSno() {
 return Sno;
 }
 public void setSno(String Sno) {
 this.Sno = Sno;
 }

 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 getSex() {
 return sex;
 }
 public void setSex(String sex) {
 this.sex = sex;
 }
 @Override
 public String toString() {
 return "Student [Sno=" + Sno + ", name=" + name + ", age=" + age + ", sex=" + sex + "]";
 } 

}

StudentOperate 类- - -学生管理系统功能实现类

package com.studentByArray.www;

import java.util.ArrayList;

public class StudentOperate {

 ArrayList<Student> list = new ArrayList<Student>();

 //增加学生
 public boolean addStudent(Student student) {

 for(int i=0;i<list.size();i++) {
 Student s = list.get(i);
 if(s.getSno().equals(student.getSno())) {

 return false;

 }else {
 list.add(student);
 return true;
 }

 }
 list.add(student);
 return true;
 }

 //查看学生信息
 public void showStudent() {
 if(list.size() == 0) {
 System.out.println("没有学生信息");
 }
 for(Student stu : list) {
 System.out.println("学生学号： "+stu.getSno()+" "+"学生姓名： "+stu.getName()+" "+"学生年龄： "+stu.getAge()+" "+"学生性别： "+stu.getSex());
 }
 }

 //根据学号修改学生信息
 public boolean updataBySno(Student student) {
 if(student.getSno() == null) {
 return false;
 }
 for(int i=0;i<list.size();i++) {
 Student s = list.get(i);
 if(s.getSno().equals(student.getSno())) {
 s.setName(student.getName());
 s.setAge(student.getAge());
 s.setSex(student.getSex());
 return true;

 }
 }
 return false;
 }

 //根据学号查看某一个学生信息
 public Student showStuBySno(String sno) {
 if(sno == null) {
 return null;
 }
 for(int i=0;i<list.size();i++) {
 Student s = list.get(i);
 if(s.getSno().equals(sno)) {
 return s;
 }
 }
 return null;
 }

 //根据性别查看同性别的所有学生
 public ArrayList<Student> selectStuByAge(String sex) {
 ArrayList<Student> newStu = new ArrayList<Student>();
 for(int i=0;i<list.size();i++) {
 Student s = list.get(i);
 if(s.getSex().equals(sex)) {
 newStu.add(s);

 }
 }
 return newStu;
 }

 //根据学号删除某一个学生
 public boolean deleteBySno(String sno) {
 Student stu = this.showStuBySno(sno);
 if(stu!=null) {
 list.remove(stu);
 return true;
 }
 return false;

 }

 //按照学号升序排序(默认)
 public ArrayList<Student> sortBySno() {
 for(int i=0;i<list.size()-1;i++) {
 for(int j=0;j<list.size()-1-i;j++) {
 if(list.get(j).getSno().compareTo(list.get(j+1).getSno())>0) {
 Student temp = list.get(j);
 list.set(j, list.get(j+1));
 list.set(j+1, temp);

 }

 }

 }
 return list;

 }

 //按照年龄降序排序
 public ArrayList<Student> sortByAge() {
 for(int i=0;i<list.size()-1;i++) {
 for(int j=0;j<list.size()-1-i;j++) {
 if(list.get(j).getAge()<list.get(j+1).getAge()) {
 Student temp = list.get(j);
 list.set(j, list.get(j+1));
 list.set(j+1, temp);
 }
 }

 }
 return list;
 }

}

StudentTest 类- - -操作界面测试类

package com.studentByArray.www;

import java.util.ArrayList;
import java.util.Scanner;

public class StudentTest {
 public static void main(String[] args) {

 StudentOperate stuO = new StudentOperate();
 Scanner input = new Scanner(System.in);
 boolean choose = true;
 while(choose) {
 System.out.println("1.增加学生");
 System.out.println("2.查看学生");
 System.out.println("3.根据学号修改学生信息");
 System.out.println("4.根据学号查看某一个学生信息");
 System.out.println("5.根据性别查看同性别的所有学生");
 System.out.println("6.根据学号删除某一个学生");
 System.out.println("7.按照学号升序排序(默认)");
 System.out.println("8.按照年龄降序排序");
 System.out.print("请输入你的选择：");
 int i = input.nextInt();
 switch(i){
 case 1:
 {
 System.out.println("请输入你要增加的学生学号：");
 String sno = input.next();
 System.out.println("请输入要增加的学生姓名：");
 String name = input.next();
 System.out.println("请输入要增加的学生年龄：");
 int age = input.nextInt();
 System.out.println("请输入要增加的学生性别：");
 String sex = input.next();
 Student stu = new Student();
 stu.setSno(sno);
 stu.setName(name);
 stu.setAge(age);
 stu.setSex(sex);

 boolean receive = stuO.addStudent(stu);
 if(receive) {
 System.out.println("添加成功！");
 }else {
 System.out.println("输入的学号已存在！");
 }
 System.out.println("请问是否继续：(true/false)");
 choose = input.nextBoolean();
 break;
 }
 case 2:
 {
 stuO.showStudent();
 System.out.println("请问是否继续：(true/false)");
 choose = input.nextBoolean();
 break;
 }
 case 3:
 {
 System.out.println("请输入你要修改的学生学号：");
 String sno = input.next();
 System.out.println("将学生姓名改为：");
 String name = input.next();
 System.out.println("将学生年龄改为：");
 int age = input.nextInt();
 System.out.println("将学生性别改为：");
 String sex = input.next();
 Student stu = new Student();
 stu.setSno(sno);
 stu.setName(name);
 stu.setAge(age);
 stu.setSex(sex);

 boolean receive = stuO.updataBySno(stu);
 if(receive) {
 System.out.println("修改成功！");
 }else {
 System.out.println("修改失败！");
 }
 System.out.println("请问是否继续：(true/false)");
 choose = input.nextBoolean();
 break;

 }
 case 4:
 {
 System.out.println("请输入要查询的学生学号：");
 String sno = input.next();
 Student receive = stuO.showStuBySno(sno);
 if(receive!=null) {

// String stu = receive.toString();
 System.out.println(receive);
 }else {
 System.out.println("没有查询到此学生！");
 }
 System.out.println("请问是否继续：(true/false)");
 choose = input.nextBoolean();
 break;
 }
 case 5:
 {
 System.out.println("请输入你要查询的学生性别：");
 String sex = input.next();
 ArrayList<Student> newStu= stuO.selectStuByAge(sex);
 System.out.println(newStu);
 System.out.println("请问是否继续：(true/false)");
 choose = input.nextBoolean();
 break;
 }
 case 6:
 {
 System.out.println("请输入要删除的学生学号：");
 String sno = input.next();
 boolean receive = stuO.deleteBySno(sno);
 if(receive) {
 System.out.println("删除成功！");
 }else {
 System.out.println("删除失败！");
 }
 System.out.println("请问是否继续：(true/false)");
 choose = input.nextBoolean();
 break;
 }
 case 7:
 {
 ArrayList<Student> stus = stuO.sortBySno();
 System.out.println(stus);
 System.out.println("请问是否继续：(true/false)");
 choose = input.nextBoolean();
 break;
 }
 case 8:
 {
 ArrayList<Student> stus = stuO.sortByAge();
 System.out.println(stus);
 System.out.println("请问是否继续：(true/false)");
 choose = input.nextBoolean();
 break;
 }

 }
 }

 }

}

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