Question

我正在编写一个代码，其中包含学生姓名和成绩，并打印出他的名字总分和平均分数。我想让它更具功能性，允许用户输入名称和分数并获取所有信息。我可以尝试将其进一步扩展到类平均值，它允许输入多个单独的名称，分数和平均值，分别打印每个名称，然后显示班级平均值。这是第二个想法，因为我首先需要用户输入成绩和名称。

这是我到目前为止所拥有的。我有一个单独的类来使一些事情更简单。

public class Student {
    private String name;
    private int numOfQuizzes;
    private int totalScore;

    public Student(String name){
        this.name = name;
    }
    public String getName() {
        return name;
    }
    public int getTotalScore() {
        return totalScore;
    }
    public void addQuiz(int score) {
        totalScore = totalScore + score;
        numOfQuizzes++;
    }
    public double getAverageScore(){
        return totalScore/(double)numOfQuizzes;
    }
}

然后我有主要方法：

public static void main(String[] args) {
    Scanner nameInput = new Scanner(System.in);
    System.out.print("What is your name? ");
    String name = nameInput.next();

    Student student = new Student(name);

    student.addQuiz(96);
    student.addQuiz(94);
    student.addQuiz(93);
    student.addQuiz(92);

    System.out.println("Students Name: " + student.getName());
    System.out.println("Total Quiz Scores: " + student.getTotalScore());
    System.out.println("Average Quiz Score: " + student.getAverageScore());
}

这是目前打印出来的内容：

What is your name? Tom
Students Name: Tom
Total Quiz Scores: 375
Average Quiz Score: 93.75

更新：这就是我到目前为止所做的。我添加了一个循环并尝试使用我的学生课程，但它似乎无法使用该数组。

ArrayList<String> scores = new ArrayList<String>();
    Scanner nameInput = new Scanner(System.in);
    System.out.print("What is your name? ");
    String name = nameInput.next();

    Scanner scoreInput = new Scanner(System.in);

    while (true) {
        System.out.print("Please enter your scores (q to quit): ");

        String q = scoreInput.nextLine();

        scores.add(q);

          if (q.equals("q")) {
              scores.remove("q");

       Student student = new Student(name);

       System.out.println("Students Name: " + student.getName());
       System.out.println("Total Quiz Scores: " + student.getTotalScore());
       System.out.println("Average Quiz Score: " + student.getAverageScore());
       break;
    }
   }
  } 
}

Answer 1

由于您刚刚学习了这门语言，我会给您一些建议，让您在途中学习。您可能希望使用while - 循环来一直询问用户新的成绩，直到他们给您一个空行或其他内容。您可以重复使用扫描仪来读取新成绩，并使用Integer.parseInt将它们转换为整数。希望这能让你进一步编写你的代码，它看起来很棒:)。

修改

在您编辑的代码中有几点可以改进。以下显示其中一些（使用import java.io.Console;）：

Scanner inp = new Scanner(System.in); // Request the name System.out.print("What is your name? "); String name = inp.nextLine(); // Create the student object Student student = new Student(name); // Ask for the grades System.out.print("Please enter your scores (q to quit): "); String grade = inp.nextLine(); while (!grade.equals("q")) { // Convert the grade to an integer and pass it student.addQuiz(Integer.parseInt(grade)); // Request a new grade grade = inp.nextLine(); } // Report the results System.out.println("Students Name: " + student.getName()); System.out.println("Total Quiz Scores: " + student.getTotalScore()); System.out.println("Average Quiz Score: " + student.getAverageScore());

输入用户输入的名称和成绩以获得平均成绩

1 个答案: