java实现学生信息管理系统

网友投稿 307 2023-01-02


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 StudentMs(int ID, String name, String classnum, String telephone) {

this.ID = ID;

this.name = name;

this.classnum = classnum;

this.telephone = 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(classnQStlCFPjum1);

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

{

if(Integer.parseInt(a[i][0]) == id)

{

n=i;

break;

}

}

return n;

}

public int delay(String[][] a)

{

System.out.println("请输入你要删除学生的学号!");

int id;

int n=-1;

id= sc.nextInt();

for(int i=0;i

{

if(Integer.parseInt(a[i][0])==id)

{

n=i;

break;

}

}

return n;

}

public int print(String[][] a)

{

System.out.println("请输入你要打印的学生信息的学生学号!");

int id;

int n=-1;

id = sc.nextInt();

for(int i=0;i

{

if(Integer.parseInt(a[i][0]) == id)

{

n=i;

break;

}

}

return n;

}

public int recivice(String[][] a)

{

System.out.println("请输入你要修改的学生信息的学生学号!");

int id;

int nhttp://=-1;

id = sc.nextInt();

for(int i=0;i

{

if(Integer.parseInt(a[i][0]) == id)

{

n=i;

break;

}

}

return n;

}

public int Num(){//用来查找修改图书信息的下标

System.out.println("选择你要修改的内容:0.学号 1.姓名 2.班级 3.电话");

int n=sc.nextInt();

return n;

}

public void display()

{

System.out.println("***************************************");

System.out.println("**** 高校学习信息管理系统 *****");

System.out.println("**** 1:添加学生信息 ****");

System.out.println("**** 2:查询学生信息 ****");

System.out.println("**** 3:修改学生信息 ****");

System.out.println("**** 4:删除学生信息 ****");

System.out.println("**** 5:打印学生信息 ****");

System.out.println("**** 6:退出 ****");

System.out.println("**** 请输入您要进行的操作(1-6) ***");

}

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

StudentMs studentMs = new StudentMs();

boolean flat = true;

HashSet a = new HashSet();

String[][] student=new String[4][10];

int num=0;

int number;

int m,n;

while (flat)

{

studentMs.display();

number=sc.nextInt();

switch (number)

{

case 1:

{

studentMs.add(studentMs);

student[num][0]=studentMs.ID+"";

student[num][1]=studentMs.name+"";

student[num][2]=studentMs.classnum+"";

student[num][3]=studentMs.telephone+"";

num++;

break;

}

case 2:

{

m=studentMs.find(student);

if(m>=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;

}

}

}

}

}

{

if(Integer.parseInt(a[i][0]) == id)

{

n=i;

break;

}

}

return n;

}

public int delay(String[][] a)

{

System.out.println("请输入你要删除学生的学号!");

int id;

int n=-1;

id= sc.nextInt();

for(int i=0;i

{

if(Integer.parseInt(a[i][0])==id)

{

n=i;

break;

}

}

return n;

}

public int print(String[][] a)

{

System.out.println("请输入你要打印的学生信息的学生学号!");

int id;

int n=-1;

id = sc.nextInt();

for(int i=0;i

{

if(Integer.parseInt(a[i][0]) == id)

{

n=i;

break;

}

}

return n;

}

public int recivice(String[][] a)

{

System.out.println("请输入你要修改的学生信息的学生学号!");

int id;

int nhttp://=-1;

id = sc.nextInt();

for(int i=0;i

{

if(Integer.parseInt(a[i][0]) == id)

{

n=i;

break;

}

}

return n;

}

public int Num(){//用来查找修改图书信息的下标

System.out.println("选择你要修改的内容:0.学号 1.姓名 2.班级 3.电话");

int n=sc.nextInt();

return n;

}

public void display()

{

System.out.println("***************************************");

System.out.println("**** 高校学习信息管理系统 *****");

System.out.println("**** 1:添加学生信息 ****");

System.out.println("**** 2:查询学生信息 ****");

System.out.println("**** 3:修改学生信息 ****");

System.out.println("**** 4:删除学生信息 ****");

System.out.println("**** 5:打印学生信息 ****");

System.out.println("**** 6:退出 ****");

System.out.println("**** 请输入您要进行的操作(1-6) ***");

}

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

StudentMs studentMs = new StudentMs();

boolean flat = true;

HashSet a = new HashSet();

String[][] student=new String[4][10];

int num=0;

int number;

int m,n;

while (flat)

{

studentMs.display();

number=sc.nextInt();

switch (number)

{

case 1:

{

studentMs.add(studentMs);

student[num][0]=studentMs.ID+"";

student[num][1]=studentMs.name+"";

student[num][2]=studentMs.classnum+"";

student[num][3]=studentMs.telephone+"";

num++;

break;

}

case 2:

{

m=studentMs.find(student);

if(m>=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;

}

}

}

}

}

{

if(Integer.parseInt(a[i][0])==id)

{

n=i;

break;

}

}

return n;

}

public int print(String[][] a)

{

System.out.println("请输入你要打印的学生信息的学生学号!");

int id;

int n=-1;

id = sc.nextInt();

for(int i=0;i

{

if(Integer.parseInt(a[i][0]) == id)

{

n=i;

break;

}

}

return n;

}

public int recivice(String[][] a)

{

System.out.println("请输入你要修改的学生信息的学生学号!");

int id;

int nhttp://=-1;

id = sc.nextInt();

for(int i=0;i

{

if(Integer.parseInt(a[i][0]) == id)

{

n=i;

break;

}

}

return n;

}

public int Num(){//用来查找修改图书信息的下标

System.out.println("选择你要修改的内容:0.学号 1.姓名 2.班级 3.电话");

int n=sc.nextInt();

return n;

}

public void display()

{

System.out.println("***************************************");

System.out.println("**** 高校学习信息管理系统 *****");

System.out.println("**** 1:添加学生信息 ****");

System.out.println("**** 2:查询学生信息 ****");

System.out.println("**** 3:修改学生信息 ****");

System.out.println("**** 4:删除学生信息 ****");

System.out.println("**** 5:打印学生信息 ****");

System.out.println("**** 6:退出 ****");

System.out.println("**** 请输入您要进行的操作(1-6) ***");

}

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

StudentMs studentMs = new StudentMs();

boolean flat = true;

HashSet a = new HashSet();

String[][] student=new String[4][10];

int num=0;

int number;

int m,n;

while (flat)

{

studentMs.display();

number=sc.nextInt();

switch (number)

{

case 1:

{

studentMs.add(studentMs);

student[num][0]=studentMs.ID+"";

student[num][1]=studentMs.name+"";

student[num][2]=studentMs.classnum+"";

student[num][3]=studentMs.telephone+"";

num++;

break;

}

case 2:

{

m=studentMs.find(student);

if(m>=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;

}

}

}

}

}

{

if(Integer.parseInt(a[i][0]) == id)

{

n=i;

break;

}

}

return n;

}

public int recivice(String[][] a)

{

System.out.println("请输入你要修改的学生信息的学生学号!");

int id;

int nhttp://=-1;

id = sc.nextInt();

for(int i=0;i

{

if(Integer.parseInt(a[i][0]) == id)

{

n=i;

break;

}

}

return n;

}

public int Num(){//用来查找修改图书信息的下标

System.out.println("选择你要修改的内容:0.学号 1.姓名 2.班级 3.电话");

int n=sc.nextInt();

return n;

}

public void display()

{

System.out.println("***************************************");

System.out.println("**** 高校学习信息管理系统 *****");

System.out.println("**** 1:添加学生信息 ****");

System.out.println("**** 2:查询学生信息 ****");

System.out.println("**** 3:修改学生信息 ****");

System.out.println("**** 4:删除学生信息 ****");

System.out.println("**** 5:打印学生信息 ****");

System.out.println("**** 6:退出 ****");

System.out.println("**** 请输入您要进行的操作(1-6) ***");

}

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

StudentMs studentMs = new StudentMs();

boolean flat = true;

HashSet a = new HashSet();

String[][] student=new String[4][10];

int num=0;

int number;

int m,n;

while (flat)

{

studentMs.display();

number=sc.nextInt();

switch (number)

{

case 1:

{

studentMs.add(studentMs);

student[num][0]=studentMs.ID+"";

student[num][1]=studentMs.name+"";

student[num][2]=studentMs.classnum+"";

student[num][3]=studentMs.telephone+"";

num++;

break;

}

case 2:

{

m=studentMs.find(student);

if(m>=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;

}

}

}

}

}

{

if(Integer.parseInt(a[i][0]) == id)

{

n=i;

break;

}

}

return n;

}

public int Num(){//用来查找修改图书信息的下标

System.out.println("选择你要修改的内容:0.学号 1.姓名 2.班级 3.电话");

int n=sc.nextInt();

return n;

}

public void display()

{

System.out.println("***************************************");

System.out.println("**** 高校学习信息管理系统 *****");

System.out.println("**** 1:添加学生信息 ****");

System.out.println("**** 2:查询学生信息 ****");

System.out.println("**** 3:修改学生信息 ****");

System.out.println("**** 4:删除学生信息 ****");

System.out.println("**** 5:打印学生信息 ****");

System.out.println("**** 6:退出 ****");

System.out.println("**** 请输入您要进行的操作(1-6) ***");

}

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

StudentMs studentMs = new StudentMs();

boolean flat = true;

HashSet a = new HashSet();

String[][] student=new String[4][10];

int num=0;

int number;

int m,n;

while (flat)

{

studentMs.display();

number=sc.nextInt();

switch (number)

{

case 1:

{

studentMs.add(studentMs);

student[num][0]=studentMs.ID+"";

student[num][1]=studentMs.name+"";

student[num][2]=studentMs.classnum+"";

student[num][3]=studentMs.telephone+"";

num++;

break;

}

case 2:

{

m=studentMs.find(student);

if(m>=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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