[Java知识库]自制Java大学英语四级成绩计算器

使用Java语言写了一个大学英语四级成绩计算器。

在程序中输入写作与翻译的成绩、听力与阅读的做对题数，程序系统自动算分，并将成绩与及格线（425分）比较。

以下为程序代码：

//CET4类：实现成绩的输入与输出
import java.util.Scanner;

public class CET4{
    int news;                      //短篇新闻听力做对题数
    int conversation;             //对话听力做对题数
    int passage;                  //短文听力做对题数
    int choose;                   //十五选十做对题数
    int longreading;              //长篇阅读做对题数
    int mainreading;              //精细阅读做对题数
    double writingGrade;          //写作成绩
    double listeningGrade;        //听力成绩
    double readingGrade;          //阅读成绩
    double translationGrade;      //翻译成绩
    double allGrade;              //总成绩
    public void setData()         //成绩输入模块
    {
        Scanner setWriting=new Scanner(System.in);
        System.out.println("请输入写作成绩：");
        writingGrade=setWriting.nextDouble();
        Scanner setNews=new Scanner(System.in);
        System.out.println("请输入短篇新闻听力做对题数：");
        news=setNews.nextInt();
        Scanner setConversation=new Scanner(System.in);
        System.out.println("请输入对话听力做对题数：");
        conversation=setConversation.nextInt();
        Scanner setPassage=new Scanner(System.in);
        System.out.println("请输入短文听力做对题数：");
        passage=setPassage.nextInt();
        Scanner setChoose=new Scanner(System.in);
        System.out.println("请输入十五选十做对题数：");
        choose=setChoose.nextInt();
        Scanner setLongReading=new Scanner(System.in);
        System.out.println("请输入长篇阅读做对题数：");
        longreading=setLongReading.nextInt();
        Scanner setMainReading=new Scanner(System.in);
        System.out.println("请输入精细阅读作对题数：");
        mainreading=setMainReading.nextInt();
        Scanner setTranslation=new Scanner(System.in);
        System.out.println("请输入翻译得分：");
        translationGrade=setTranslation.nextDouble();
    }
    public void calculate() //成绩计算模块
    {
        double newsGrade;
        newsGrade=news*7.1;
        double conversationGrade;
        conversationGrade=conversation*7.1;
        double passageGrade;
        passageGrade=passage*14.2;
        double chooseGrade;
        chooseGrade=choose*3.55;
        double longReadingGrade;
        longReadingGrade=longreading*7.1;
        double mainReadingGrade;
        mainReadingGrade=mainreading*14.2;
        listeningGrade=newsGrade+conversationGrade+passageGrade;
        readingGrade=chooseGrade+longReadingGrade+mainReadingGrade;
        allGrade=writingGrade+listeningGrade+readingGrade+translationGrade;
    }
    public void display()      //成绩显示模块
    {
        System.out.println("写作成绩："+String.format("%.2f", writingGrade));
        System.out.println("听力成绩："+String.format("%.2f", listeningGrade));
        System.out.println("阅读成绩"+String.format("%.2f", readingGrade));
        System.out.println("翻译成绩："+String.format("%.2f", translationGrade));
        System.out.println("四级总成绩："+String.format("%.2f", allGrade));
    }
    public void compare()     //成绩比较模块
    {
        if (allGrade>425){
            System.out.println("通过四级考试！");
        }else{
            System.out.println("未通过四级考试！");
        }
    }
}

//main函数程序：创建CET-4对象
public class GradeSystem {
    public static void main(String[] args){
        CET4 candidate1 = new CET4();
        candidate1.setData();
        candidate1.calculate();
        candidate1.display();
        candidate1.compare();
    }
}