import java.util.Scanner;
public class Syscontrol{
public static void main(String[] args) {
UI.menu();
}
}
class UI {
public static void menu() {
System.out.println("******************学生个人成绩管理系统***********");
System.out.printf("\n", null);
System.out.println(" 1、成绩管理");
System.out.println(" 2、信息管理");
System.out.println(" 3、退出系统");
System.out.printf("\n", null);
System.out.println("************************************************");
System.out.println("请输入功能编号(1-3)：");
Scanner r0 = new Scanner(System.in);
int i = r0.nextInt();
switch(i){
case 1: grademenu(); break;
case 2: stumenu(); break;
case 3:
System.out.println("再见！");
break;
default:
System.out.println("请输入数字1到3");
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
menu();
break;
}
r0.close();
}
private static void grademenu() {
StudentService stulist=new StudentService();
System.out.println("******************学生个人成绩系统***************");
System.out.printf("\n", null);
System.out.println(" 1、增加成绩");
System.out.println(" 2、删除成绩");
System.out.println(" 3、修改成绩");
System.out.println(" 4、显示成绩");
System.out.println(" 5、汇总成绩");
System.out.println(" 6、返回上一系统");
System.out.printf("\n", null);
System.out.println("************************************************");
System.out.println("请输入功能编号(1-6)：");
Scanner r1 = new Scanner(System.in);
int s = r1.nextInt();
switch(s){
case 1:
stulist.addgrades();
Syscontrol.main(null);
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
break;
case 2:
stulist.delgrades();
Syscontrol.main(null);
break;
case 3:
stulist.editgrades();
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
Syscontrol.main(null);
break;
case 4:
stulist.findgrades();
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
Syscontrol.main(null);
break;
case 5:
stulist.allgrades();
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
Syscontrol.main(null);
break;
case 6: grademenu(); break;
default:
System.out.println("请输入数字1到6");
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
stumenu();
break;
}
r1.close();
}
private static void stumenu() {
StudentService stulist=new StudentService();
System.out.println("******************学生个人成绩管理系统***********");
System.out.printf("\n", null);
System.out.println(" 1、显示学生信息");
System.out.println(" 2、修改学生信息");
System.out.println(" 3、返回上一系统");
System.out.printf("\n", null);
System.out.println("************************************************");
System.out.println("请输入功能编号(1-3)：");
Scanner r2 = new Scanner(System.in);
int t = r2.nextInt();
switch(t){
case 1:
stulist.showstu();
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
Syscontrol.main(null);
break;
case 2:
stulist.editstu();
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
Syscontrol.main(null);
break;
case 3:
menu();
break;
default:
System.out.println("请输入数字1到3");
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
stumenu();
break;
}
r2.close();
}
}
class Student{
private String stuno;
private String name;
private String classes;
private String rtime;
Scores subjects[];
private static int itemCount =0;
Student(){
itemCount++;
}
Student(String stuno,String name,String classes,String rtime){
this.stuno = stuno;
this.name = name;
this.classes = classes;
this.rtime = rtime;
itemCount++;
}
Student(Student aItem){
this(aItem.stuno,aItem.name,aItem.classes,aItem.rtime);
itemCount++;
}
public Student(String stuno,String name,String classes,String rtime, Scores[] sub) {
this.stuno = stuno;
this.name = name;
this.classes = classes;
this.rtime = rtime;
this.subjects=sub;
itemCount++;
}
public String getStuno() {
return stuno;
}
public void setStuno(String stuno) {
this.stuno = stuno;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getClasses() {
return classes;
}
public void setClasses(String classes) {
this.classes = classes;
}
public String getRtime() {
return rtime;
}
public void setRtime(String rtime) {
this.rtime = rtime;
}
public static int getItemCount() {
return itemCount;
}
public Scores[] getSubjects() {
return subjects;
}
public void setSubjects(Scores[] subjects) {
this.subjects = subjects;
}
public String toString(){
return stuno+" "+name+" "+classes+" "+rtime;
}
}
class Scores{
private String cno;
private String cname;
private String cgrades;
private String cscore;
Scores(){
}
Scores(String cno,String cname,String cgrades,String cscore){
this.cno = cno;
this.cname = cname;
this.cgrades=cgrades;
this.cscore=cscore;
}
public String getCno() {
return cno;
}
public void setCno(String cno) {
this.cno = cno;
}
public String getCname() {
return cname;
}
public void setCname(String cname) {
this.cname = cname;
}
public String getCscore() {
return cscore;
}
public void setCscore(String cscore) {
this.cscore = cscore;
}
public String getCgrades() {
return cgrades;
}
public void setCgrades(String cgrades) {
this.cgrades = cgrades;
}
}
class StudentService{
private Student stu[]=new Student[100];
private Scores sub[]=new Scores[100];
private static int stutotal;
private static int subtotal;
public static int getStutotal() {
return stutotal;
}
public static int getSubtotal() {
return subtotal;
}
public StudentService(){
sub[0]=new Scores("1","Math"," 60","4");
sub[1]=new Scores("2","English"," 60","3.5");
sub[2]=new Scores("3","Chinese"," 60","3");
subtotal=3;
stu[0]=new Student("1","xu","12-1","2012",sub);
stu[1]=new Student("2","yu","12-1","2012",sub);
stu[2]=new Student("3","su","12-1","2012",sub);
stutotal=3;
}
public boolean showstu(){
System.out.println("请输入学生学号：");
Scanner sc = new Scanner(System.in);
String i = sc.nextLine();
//sc.close();
int j;
for(j=0;j<stutotal;j++){
if(stu[j].getStuno().compareTo(i)==0)
break;
}
if(j<stutotal)
{
System.out.println("学号为"+i+"信息为"+stu[j].toString());
return true;
}else
{
System.out.println("未找到您输入的学生，请检查！");
return false;
}
}
public void showstu(String i){
int j;
for(j=0;j<stutotal;j++){
if(stu[j].getStuno().compareTo(i)==0)
break;
}
if(j<stutotal)
System.out.println("学号为"+i+"信息为"+stu[j].toString());
}
public void editstu(){
System.out.println("请输入要修改的学生学号：");
Scanner sc = new Scanner(System.in);
String i = sc.nextLine();
int j;
for(j=0;j<stutotal;j++){
if(stu[j].getStuno().compareTo(i)==0)
break;
}
if(j<stutotal)
{
System.out.println("学号为"+i+"信息为"+stu[j].toString());
System.out.println("请输入新的学生信息，输入格式为学号，姓名，班级，入学年份。如：1 xu 12-1 2012");
String input =sc.nextLine();
String[] additem=input.split(" ");
if(additem.length==4){
delstu(i);
addstu(new Student(additem[0],additem[1],additem[2],additem[3]));
System.out.println("修改成功！");
showstu(i);
//sc.close();
}
}
else
{
System.out.println("未找到您输入的学生，请检查！");
//sc.close();
}
}
public void delstu(String i) {
int k=-1;
for(int j=0;j<stutotal;j++){
if(stu[j].getStuno().compareTo(i)==0)
k=j;
}
if(k!=-1){
for(int s=k;s<stutotal-1;s++)
stu[s]=stu[s+1];
stutotal--;
stu[stutotal]=null;
}
}
public void addstu(Student student){
stu[stutotal]=new Student(student);
stutotal++;
}
public void addgrades(){
System.out.println("请输入学生学号：");
Scanner sc = new Scanner(System.in);
String i = sc.nextLine();
for(int j=0;j<stutotal;j++){
if(stu[j].getStuno().compareTo(i)==0){
System.out.println("请输入科目名称：");
String m = sc.nextLine();
for(int j1=0;j1<stutotal;j1++){
if(stu[j].subjects[j1].getCname().compareTo(m)==0){
System.out.println("请输入成绩：");
String n = sc.nextLine();
stu[j].subjects[j1].setCgrades(n);
System.out.println("成绩录入成功！");
System.out.println("学号为"+i+"科目"+m+"成绩为"+stu[j].subjects[j1].getCgrades());
}
}
break;
}
}
//sc.close();
}
public void editgrades(){
System.out.println("请输入学生学号：");
Scanner sc = new Scanner(System.in);
String i = sc.nextLine();
for(int j=0;j<stutotal;j++){
if(stu[j].getStuno().compareTo(i)==0){
System.out.println("请输入科目名称：");
String m = sc.nextLine();
for(int j1=0;j1<stutotal;j1++){
if(stu[j].subjects[j1].getCname().compareTo(m)==0){
System.out.println("学号为"+i+"科目"+m+"成绩为"+stu[j].subjects[j1].getCgrades());
System.out.println("请输入新的成绩：");
String n = sc.nextLine();
stu[j].subjects[j1].setCgrades(n);
System.out.println("新成绩录入成功！");
System.out.println("学号为"+i+"科目"+m+"新成绩为"+stu[j].subjects[j1].getCgrades());
}
}
break;
}
}
// sc.close();
}
public void delgrades(){
System.out.println("请输入学生学号：");
Scanner sc = new Scanner(System.in);
String i = sc.nextLine();
for(int j=0;j<stutotal;j++){
if(stu[j].getStuno().compareTo(i)==0){
System.out.println("请输入科目名称：");
String m = sc.nextLine();
for(int j1=0;j1<stutotal;j1++){
if(stu[j].subjects[j1].getCname().compareTo(m)==0){
System.out.println("学号为"+i+"科目"+m+"成绩为"+stu[j].subjects[j1].getCgrades());
System.out.println("确认删除吗？(1/0)：");
int n = sc.nextInt();
if(n==1)
{
stu[j].subjects[j1].setCgrades(null);
System.out.println("删除成功！");
System.out.println("学号为"+i+"科目"+m+"成绩为"+stu[j].subjects[j1].getCgrades());
}
}
}
break;
}
}
//sc.close();
}
public void findgrades(){
System.out.println("请输入学生学号：");
Scanner sc = new Scanner(System.in);
String i = sc.nextLine();
for(int j=0;j<stutotal;j++){
if(stu[j].getStuno().compareTo(i)==0){
System.out.println("请输入科目名称：");
String m = sc.nextLine();
for(int j1=0;j1<stutotal;j1++){
if(stu[j].subjects[j1].getCname().compareTo(m)==0){
System.out.println("学号为"+i+"科目"+m+"成绩为"+stu[j].subjects[j1].getCgrades());
}
}
break;
}
}
//sc.close();
}
public void allgrades() {
for(int j=0;j<stutotal;j++){
System.out.println(stu[j].getName());
for(int j1=0;j1<subtotal;j1++)
System.out.println(stu[j].subjects[j1].getCname()+"成绩为"+stu[j].subjects[j1].getCgrades());
}
}
时间： 2024-10-04 02:30:49