How to use Java to implement a simple student test score analysis system?

How to use Java to implement a simple student test score analysis system?

With the advancement of education and the continuous expansion of school scale, the management and analysis of student test scores have become increasingly important. Using computer technology to accomplish this task can greatly improve efficiency and accuracy. This article will introduce how to use Java to write a simple student test score analysis system.

First, we need to define a student class (Student), which contains the student's basic information and test scores. We can use the following attributes to represent student information:

String name;    // 姓名
int age;        // 年龄
int[] scores;   // 考试成绩数组

Next, we can write a student management class (StudentManager) to manage student information and implement performance analysis functions. In this class, we need to implement the following methods:

1. Add student information (addStudent): This method is used to add student information to the system, including name, age and test scores. We can use an ArrayList to store all student information.
2. Delete student information (deleteStudent): This method is used to delete student information based on the student's name.
3. Find student information (findStudent): This method is used to find student information based on the student's name and output the student's basic information and test scores.
4. Statistical total score and average score (getTotalScore, getAverageScore): This method is used to calculate the total score and average score of all students.
5. Analysis of performance (analysisScore): This method is used to analyze students' performance, including the highest score, the lowest score and the distribution of scores.

The following is a simple implementation example:

import java.util.ArrayList;

public class StudentManager {
    private ArrayList<Student> students;

    public StudentManager() {
        students = new ArrayList<Student>();
    }

    public void addStudent(String name, int age, int[] scores) {
        Student student = new Student(name, age, scores);
        students.add(student);
    }

    public void deleteStudent(String name) {
        for (int i = 0; i < students.size(); i++) {
            if (students.get(i).getName().equals(name)) {
                students.remove(i);
                break;
            }
        }
    }

    public void findStudent(String name) {
        for (int i = 0; i < students.size(); i++) {
            if (students.get(i).getName().equals(name)) {
                students.get(i).displayInfo();
                break;
            }
        }
    }

    public int getTotalScore() {
        int totalScore = 0;
        for (Student student : students) {
            totalScore += student.getTotalScore();
        }
        return totalScore;
    }

    public double getAverageScore() {
        return (double) getTotalScore() / students.size();
    }

    public void analysisScore() {
        int maxScore = Integer.MIN_VALUE;
        int minScore = Integer.MAX_VALUE;
        int[] scoreDistribution = new int[101];
        
        for (Student student : students) {
            int totalScore = student.getTotalScore();
            maxScore = Math.max(maxScore, totalScore);
            minScore = Math.min(minScore, totalScore);
            scoreDistribution[totalScore]++;
        }
        
        System.out.println("最高分：" + maxScore);
        System.out.println("最低分：" + minScore);
        
        for (int i = 0; i <= 100; i++) {
            if (scoreDistribution[i] > 0) {
                System.out.println("分数为" + i + "的人数：" + scoreDistribution[i]);
            }
        }
    }
}

The above is a simple Java implementation of a student test score analysis system. Through this system, we can easily manage student information, conduct performance analysis, and obtain some important statistical data. Of course, this is just a simple example and you can extend and optimize it according to your actual needs. I hope this article is helpful to you, and I wish you happy programming!

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