课堂检测

ScoreInformation类：

package ceshi;


class ScoreInformation {
    private String stunumber;
    private String name;
    private double mathematicsscore;
    private double englishiscore;
    private double networkscore;
    private double databasescore;
    private double softwarescore;

    public ScoreInformation(){

    }

    public ScoreInformation(String stunumber, String name, double mathematicsscore, double englishiscore, double networkscore, double databasescore, double softwarescore) {
        this.stunumber = stunumber;
        this.name = name;
        this.mathematicsscore = mathematicsscore;
        this.englishiscore = englishiscore;
        this.networkscore = networkscore;
        this.databasescore = databasescore;
        this.softwarescore = softwarescore;
    }

    public String getStunumber() {
        return stunumber;
    }

    public void setStunumber(String stunumber) {
        this.stunumber = stunumber;
    }

    public String getName() {
        return name;
    }

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

    public double getMathematicsscore() {
        return mathematicsscore;
    }

    public void setMathematicsscore(double mathematicsscore) {
        this.mathematicsscore = mathematicsscore;
    }

    public double getEnglishiscore() {
        return englishiscore;
    }

    public void setEnglishiscore(double englishiscore) {
        this.englishiscore = englishiscore;
    }

    public double getNetworkscore() {
        return networkscore;
    }

    public void setNetworkscore(double networkscore) {
        this.networkscore = networkscore;
    }

    public double getDatabasescore() {
        return databasescore;
    }

    public void setDatabasescore(double databasescore) {
        this.databasescore = databasescore;
    }

    public double getSoftwarescore() {
        return softwarescore;
    }

    public void setSoftwarescore(double softwarescore) {
        this.softwarescore = softwarescore;
    }

}
Main类：

package ceshi;

import java.util.*;

public class Main {
    static ScoreInformation[] scoreInformations=new ScoreInformation[5];

    static int n=0;

    public static void main(String args[]){
while (true) {
    Scanner scanner = new Scanner(System.in);
    caidan1();
    int select = 0;
    select = scanner.nextInt();
    switch (select) {
        case 1:
            caidan2();
            add();
            break;
        case 2:
            caidan3();
            updata();
            break;
        case 4:
            quite();
        default:
            System.exit(0);
            break;
    }
}
    }
    static void caidan1(){
        System.out.println("***********************************************************");
        System.out.println("                  石家庄铁道大学软件工程系                   ");
        System.out.println("                  学生学籍管理系统 2019 版                  ");
        System.out.println("***********************************************************");
        System.out.println("                    1、 学生考试成绩录入                     ");
        System.out.println("                    2、 学生考试成绩修改                     ");
        System.out.println("                    3、 计算学生成绩绩点                     ");
        System.out.println("                    4、退出学籍管理系统                      ");
        System.out.println("**********************************************************  ");}
    static public  void caidan2(){
        System.out.println("***********************************************************");
        System.out.println("        石家庄铁道大学软件工程系学生学籍管理系统 2019 版      ");
        System.out.println("                      学生考试成绩录入                       ");
        System.out.println("***********************************************************");
        System.out.println("                       请输入学生学号：                      ");
    }
    static public void caidan3(){
        System.out.println("***********************************************************");
        System.out.println("      石家庄铁道大学软件工程系学生学籍管理系统 2019 版        ");
        System.out.println("                     学生考试成绩修改界面                    ");
        System.out.println("***********************************************************");
        System.out.println("                        请输入学生学号：                     ");
        System.out.println("**********************************************************  ");
    }
    static public void caidan4(){
        System.out.println("***********************************************************");
        System.out.println("       石家庄铁道大学软件工程系学生学籍管理系统 2019 版       ");
        System.out.println("                     学生考试成绩修改界面                    ");
        System.out.println("*********************************************************** ");
        System.out.println("                    请输入需要修改科目的序号：                ");
    }
    static void chushihua(){
        scoreInformations[0]=new ScoreInformation();
        scoreInformations[0].setName("马川");
        String s="20183561";
        scoreInformations[0].setStunumber(s);
        scoreInformations[1]=new ScoreInformation();
        scoreInformations[1].setName("张三");
        String s1="20180000";
        scoreInformations[1].setStunumber(s1);
        scoreInformations[2]=new ScoreInformation();
        scoreInformations[2].setName("李四");
        String s2="20180001";
        scoreInformations[2].setStunumber(s2);
        scoreInformations[3]=new ScoreInformation();
        scoreInformations[3].setName("harden");
        String s3="20180002";
        scoreInformations[3].setStunumber(s3);
        scoreInformations[4]=new ScoreInformation();
        scoreInformations[4].setName("james");
        String s4="20180004";
        scoreInformations[4].setStunumber(s4);
    }
     static void add(){
        Scanner sc = new Scanner(System.in);
        String stunumber=sc.nextLine();
        for(int i=0;i<5;i++){
            scoreInformations [i]= new ScoreInformation();
            chushihua();
            if(scoreInformations[i].getStunumber().equals(stunumber)){
                System.out.println("学生姓名：" +scoreInformations[i].getName());
                System.out.println("学生学号："+scoreInformations[i].getStunumber());
                System.out.println("请输入高等数学成绩：");
                double mathematicsscore=sc.nextDouble();
                System.out.println("请输入英语成绩");
                double englishiscore=sc.nextDouble();
                System.out.println("请输入计算机网络成绩");
                double networkscore=sc.nextDouble();
                System.out.println("请输入数据库成绩：");
                double databasescore=sc.nextDouble();
                System.out.println("请输入软件工程成绩：");
                double softwarescore=sc.nextDouble();
                System.out.println("该同学成绩已录入是否提交（Y/N）");
                Scanner sc1=new Scanner(System.in);
                String panduan=sc1.nextLine();
                String y="Y";
                if (panduan.equals(y)){
                    System.out.println("已成功录入！");
                }
                else{
                    int i1=0;
                    double d1=i1;
                    scoreInformations[i].setDatabasescore(d1);
                    scoreInformations[i].setEnglishiscore(d1);
                    scoreInformations[i].setMathematicsscore(d1);
                    scoreInformations[i].setNetworkscore(d1);
                    scoreInformations[i].setSoftwarescore(d1);
                    caidan2();
                }
            }
            else{
                System.out.println("查无此人");
            }
           break;
        }

    }
    static  void updata(){
        Scanner sc2=new Scanner(System.in);
        String stunumber2=sc2.nextLine();
        for (int i=0;i<5;i++){
            scoreInformations[i]=new ScoreInformation();
            chushihua();
            if (scoreInformations[i].getStunumber().equals(stunumber2)){
                System.out.println("***********************************************************");
                System.out.println("      石家庄铁道大学软件工程系学生学籍管理系统 2019 版        ");
                System.out.println("                  学生考试成绩修改界面                       ");
                System.out.println("*********************************************************** ");
                System.out.println("学生学号："+scoreInformations[i].getStunumber());
                System.out.println("学生姓名:"+scoreInformations[i].getName());
                System.out.println("1、高等数学成绩："+scoreInformations[i].getMathematicsscore());
                System.out.println("2、英语成绩："+scoreInformations[i].getEnglishiscore());
                System.out.println("3、数据库成绩："+scoreInformations[i].getDatabasescore());
                System.out.println("4、软件工程成绩："+scoreInformations[i].getSoftwarescore());
                System.out.println("5、网络成绩："+scoreInformations[i].getNetworkscore());
            }
            else {
                System.out.println("查无此人！");
            }
        }
        caidan4();
        Integer xuanze=sc2.nextInt();
        switch (xuanze){
            case 1:
        }




    }
    static  void quite(){
        System.out.println("***********************************************************");
        System.out.println("    谢谢使用石家庄铁道大学软件工程系学生学籍管理系统 2019 版   ");
        System.out.println("                       制作人：马川                         ");
        System.out.println(" ***********************************************************");

    }

}