package com.itheima;
import java.util.ArrayList;
import java.util.Scanner;
/**
* @program: studentManager
* @description:
* @author: lipeian
* @create: 2021-11-04 19:55
**/
public class StudentManager {
public static void main(String[] args) {
ArrayList<Student> arrayList = new ArrayList<>();
for (;;){
System.out.println("---------欢迎进入学生管理系统---------");
System.out.println("1、添加学生");
System.out.println("2、删除学生");
System.out.println("3、修改学生");
System.out.println("4、查看所有学生");
System.out.println("5、退出");
System.out.println("请输入你的选择");
Scanner sc = new Scanner(System.in);
String line = sc.nextLine();
switch (line){
case "1":
addStudent(arrayList);
break;
case "2":
deleteStudent(arrayList);
break;
case "3":
updateStudent(arrayList);
break;
case "4":
findAllStudent(arrayList);
break;
case "5":
System.out.println("感谢使用！");
System.exit(0);
default:break;
}
}
}
//增加学生
public static void addStudent(ArrayList<Student> array){
Scanner scanner = new Scanner(System.in);
Student student = new Student();
System.out.println("请输入学生的学号：");
boolean sidIsUse;
do{
sidIsUse = false;
student.setSid(scanner.nextLine());
for (int i=0; i<array.size(); i++){
if (array.get(i).getSid().equals(student.getSid())){
System.out.println("您输入学号的学生已经存在，请重新输入：");
sidIsUse = true;
break;
}
}
}while (sidIsUse);
System.out.println("请输入学生的姓名：");
student.setName(scanner.nextLine());
System.out.println("请输入学生的年龄：");
student.setAge(scanner.nextLine());
System.out.println("请输入学生的家庭住址：");
student.setAddress(scanner.nextLine());
array.add(student);
System.out.println("添加学生成功！");
}
//判断学生学号是否被使用
public static boolean sidIsUse(ArrayList<Student> arrayList, String sid){
for (int i=0; i<arrayList.size(); i++){
if (arrayList.get(i).getSid().equals(sid)){
return true;
}
}
return false;
}
//查找学生
public static void findAllStudent(ArrayList<Student> array){
if (array.size() == 0){
System.out.println("没有找到任何学生信息，请先添加学生信息！");
return;
}
System.out.println("学号\t姓名\t年龄\t\t家庭住址");
for (int i=0; i<array.size(); i++){
Student s = array.get(i);
System.out.println(s.getSid() + "\t" + s.getName() + "\t" + s.getAge() + "岁\t" + s.getAddress());
}
}
//删除学生
public static void deleteStudent(ArrayList<Student> array){
Scanner scanner = new Scanner(System.in);
System.out.println("请输入要你所要删除学生信息对应的学号：");
String sid = scanner.nextLine();
for (int i=0; i<array.size(); i++){
//字符串的值比较使用equals
if (array.get(i).getSid().equals(sid)){
array.remove(array.get(i));
System.out.println("删除成功！");
return;
}
}
System.out.println("没有找到您输入学号对应的学生，请检查学号是否正确！");
}
//修改学生信息
public static void updateStudent(ArrayList<Student> array){
Scanner scanner = new Scanner(System.in);
System.out.println("请输入您所要修改学生信息对应的学号：");
String sid = scanner.nextLine();
for (int i=0; i<array.size();i++){
if (array.get(i).getSid().equals(sid)) {
System.out.println("请输入修改后学生的姓名：");
array.get(i).setName(scanner.nextLine());
System.out.println("请输入修改后学生的年龄：");
array.get(i).setAge(scanner.nextLine());
System.out.println("请输入修改后学生的家庭住址：");
array.get(i).setAddress(scanner.nextLine());
return;
}
}
System.out.println("您输入的学号有误！");
}
}
Java基础各章节个人总结代码 （670个子文件） 
StudentManager.class 5KB PokerDemoPro.class 3KB MapDemo3.class 3KB ArrayListToFileDemoPro2.class 3KB MapDemo2.class 3KB PokerDemo.class 2KB MapDemo.class 2KB HashMapDemo.class 2KB MapDemo.class 2KB ReflectDemo2.class 2KB ReflectDemo2.class 2KB DirCopyDemo3.class 2KB ReflectDemo.class 2KB ArrayListToFileDemoPro.class 2KB ReflectDemo2.class 2KB ReflectDemo.class 2KB IntegerDemo.class 2KB StudentDemo.class 2KB ObjectStreamDemo.class 2KB DirCopyDemo2.class 2KB ReflectDemo.class 2KB Student.class 2KB MapDemo2.class 2KB ArrayTest.class 2KB FileToArrayListDemoPro.class 2KB Student.class 2KB VlogCopyDemo.class 2KB Student.class 2KB PropertiesDemo2.class 2KB ListIteratorDemo.class 2KB Student.class 2KB Student.class 2KB DirCopyDemo.class 2KB Student.class 2KB PropertiesDemo.class 2KB StudentTest.class 2KB PropertiesTest.class 2KB ArrayDemo.class 2KB SellTickets.class 2KB ListDemo2.class 2KB FileDemo3.class 2KB ScoreDemo.class 1KB ReflectDemo2.class 1KB Student.class 1KB EnhancedForDemo.class 1KB Box.class 1KB BufferedStreamDemo2.class 1KB StudentSortDemo.class 1KB SystemInDemo.class 1KB TreeSetDemo.class 1KB DaysOfFebruary.class 1KB SellTickets.class 1KB ReflectDemo3.class 1KB PropertiesDemo3.class 1KB RollCallDeviceDemo.class 1KB FileToArrayListDemo.class 1KB AnimalDemo.class 1KB ReflectDemo.class 1KB ReflectDemo.class 1KB CollectionDemo.class 1KB ExceptionDemo4.class 1KB ThreadDemo.class 1KB TreeSetDemo.class 1KB IntegerDemo2.class 1KB ExceptionDemo2.class 1KB ArrayListToFileDemo.class 1KB BufferedStreamDemo.class 1KB ExceptionDemo3.class 1KB SellTickets.class 1KB Student.class 1KB CalendarDemo.class 1KB HashSetDemo.class 1KB SetDemo.class 1KB HashCodeDemo.class 1KB RandomNumDemo.class 1KB IntegerDemo.class 1KB ThreadDeamonDemo.class 1KB CollectionDemo.class 1KB CollectionDemo.class 1KB GenericDemo.class 1KB LinkedListDemo.class 1KB ArrayListToFileDemoPro2$1.class 1KB SimpleDateFormatDemo.class 1KB StringDemo.class 1KB Student.class 1KB Student.class 1KB Student.class 1KB Student.class 1KB Student.class 1KB ListDemo.class 1KB Student.class 1KB Student.class 1KB DateDemo.class 1KB SellTickets.class 1KB JavaFileCopyDemoPro3.class 1KB LinkedHashSetDemo.class 1KB Demo.class 1KB TreeSetDemo.class 1KB JavaFileCopyDemo.class 1KB FileOutputStreamDemo4.class 1KB共 670 条
- 1
- 2
- 3
- 4
- 5
- 6
- 7
评论0