java实现学生信息管理系统

JAVA简单写学生信息管理系统，实现学生信息的输入、查询、修改、删除操作

package Week;

import jdk.internal.util.xml.impl.Input;

import java.util.HashSet;
import java.util.Scanner;

public class StudentMs {
 Scanner sc = new Scanner(System.in);
 public int getID() {
  return ID;
 }

 public String getName() {
  return name;
 }

 public String getClassnum() {
  return classnum;
 }

 public int getTelephone() {
  return telephone;
 }

 public void setID(int ID) {
  this.ID = ID;
 }

 public void setName(String name) {
  this.name = name;
 }

 public void setClassnum(String classnum) {
  this.classnum = classnum;
 }

 public void setTelephone(int telephone) {
  this.telephone = telephone;
 }
 private int ID;
 private String name;
 private String classnum;
 private int telephone;

 

 public void add(StudentMs a){
  int ID1;
  String name2;
  String classnum1;
  int telephone1;
   System.out.println("请输入你要添加的学生信息");
   System.out.println("请输出学生学号");
   ID1 =sc.nextInt();
   a.setID(ID1);
   System.out.println("请输出学生姓名");
   sc.nextLine();
   name2=sc.nextLine();
   a.setName(name2);
   System.out.println("请输出学生班级");
   classnum1=sc.nextLine();
   a.setClassnum(classnum1);
   System.out.println("请输出学生电话号码");
   telephone1=sc.nextInt();
   a.setTelephone(telephone1);
 }
 public int find(String[][] a)
 {
  System.out.println("请输入你要查询学生的学号");
  int n=-1;
  int id = sc.nextInt();
  for(int i=0;i=0){
      System.out.println("学生学号为："+student[m][0]);
      System.out.println("学生姓名为："+student[m][1]);
      System.out.println("学生班级为："+student[m][2]);
      System.out.println("学生电话为："+student[m][3]);
     }else{
      System.out.println("学号错误,未找到学生");
      break;
     }
     break;
    }
    case 3:
    {
     m=studentMs.recivice(student);
     n=studentMs.Num();
     System.out.println("请输入你要修改的内容：");
     student[m][n]=sc.next();
     System.out.println("修改成功！");
     break;
    }
    case 4:
    {
     m=studentMs.delay(student);
     for(int i=0;i<4;i++)
     {
      student[m][i]=null;
     }
     System.out.println("已经成功删除学生信息");
     break;
    }
    case 5:
    {
     m=studentMs.delay(student);
     System.out.println("学号"+student[m][0]+"的学生信息为：");
     System.out.println("学生学号为："+student[m][0]);
     System.out.println("学生姓名为："+student[m][1]);
     System.out.println("学生班级为："+student[m][2]);
     System.out.println("学生电话为："+student[m][3]);
     break;
    }
    case 6:
    {
     System.out.println("程序退出！");
     flat=false;
     break;
    }
   }
  }
 }
}

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