How to use Java to write the print score function of the online examination system

How to use Java to write the print score function of an online exam system

In an online exam system, the print score function is very important, it can help students and teachers View and manage test scores more conveniently. The following will introduce how to use Java to write the print score function of a simple online examination system, and provide specific code examples.

First, we need to define a student class (Student) and a score class (Score). The student class contains the student's basic information, such as student number, name, etc., and the score class contains a certain exam of the student. score.

The definition of the student class is as follows:

public class Student {
    private String studentId; // 学号
    private String name; // 姓名

    public Student(String studentId, String name) {
        this.studentId = studentId;
        this.name = name;
    }

    public String getStudentId() {
        return studentId;
    }

    public String getName() {
        return name;
    }
}

The definition of the grade class is as follows:

public class Score {
    private Student student; // 学生
    private double score; // 成绩

    public Score(Student student, double score) {
        this.student = student;
        this.score = score;
    }

    public Student getStudent() {
        return student;
    }

    public double getScore() {
        return score;
    }
}

Next, we can create a function that prints grades, which receives a list of grades as a parameter and print out the results. The code example is as follows:

public class ExamSystem {

    // 打印成绩
    public static void printScore(List<Score> scores) {
        System.out.println("学号    姓名    成绩");

        for (Score score : scores) {
            Student student = score.getStudent();
            double scoreValue = score.getScore();

            System.out.println(student.getStudentId() + "    " + student.getName() + "    " + scoreValue);
        }
    }

    public static void main(String[] args) {
        List<Score> scores = new ArrayList<>();

        // 初始化成绩列表
        Student student1 = new Student("001", "张三");
        Score score1 = new Score(student1, 90.5);

        Student student2 = new Student("002", "李四");
        Score score2 = new Score(student2, 85.5);

        scores.add(score1);
        scores.add(score2);

        // 打印成绩
        printScore(scores);
    }
}

In the above code, we define an ExamSystem class, in which the printScore function is used to print scores. By passing in a list of grades, we can iterate through each grade object in the list and use the getter method to get the student information and grade values, and then print them out.

In the main function, we initialize a score list and call the printScore function to print the scores.

The above is a specific example code for using Java to write the print score function of the online examination system. By defining the student class and score class, and implementing a function to print scores, we can easily print out the score information in the online examination system. Of course, based on actual needs, we can further improve this function, such as supporting sorting by scores, adding filtering conditions, etc.

I hope this article will help you understand how to use Java to write the print score function of the online examination system!

The above is the detailed content of How to use Java to write the print score function of the online examination system. For more information, please follow other related articles on the PHP Chinese website!