student

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());                  
            }
        }