Student Grade Management

Points: 40 (partial)

Time limit: 1.0s

Memory limit: 64M

Authors:

scu09156238, scu09156146

Problem types

Allowed languages

Java 19, Java 8

題目說明

設計一個學生成績管理系統，該系統能夠讓使用者輸入學生的名字和成績。
輸入完成之後，程式會印出學生成績清單，每個學生成績的輸出格式為Student: studentName, Grade: courseGrade

要求：

創建一個Student類別，用於表示學生的基本資訊和成績。
創建一個GradeManager類別，用於管理多個學生。

import java.util.ArrayList;
import java.util.Scanner;

class Student {
    private String name;
    private int grade;

    // 補齊後續程式碼
    public Student(...) {
    }

    public String toString() {
        // 格式："Student: studentName, Grade: courseGrade"
    }
}

class GradeManager {
    private ArrayList<Student> students;

    // 補齊後續程式碼
    public GradeManager() {
    }

    public void addStudent(...) {
    }

    public void printAllStudents() {
        // 分行輸出學生資料
    }
}

public class StudentGrade {

    public static void main(String[] args) {
        GradeManager gradeManager = new GradeManager();

        // 補齊後續程式碼
    }

}

輸入

一行輸入一組學生資料，如：Alice,90(中間以,分隔)
當輸入為.時，結束輸入

輸出

學生成績清單。
輸出格式為Student: studentName, Grade: courseGrade，分行輸出

測試資料0 輸入

Jack,90
Mike,95
.

測試資料0 輸出

Student: Jack, Grade: 90
Student: Mike, Grade: 95

測試資料1 輸入

J,1
M,-1
.

測試資料1 輸出

Student: J, Grade: 1
Student: M, Grade: -1

Comments

scu09156146 commented on May 31, 2024, 2:46 p.m.

題解

// 參考課堂範例A276，對讀入的資料做分割.split(",")
// 參考期中考題【Grade Report】

import java.util.ArrayList;
import java.util.Scanner;

class Student {
    private String name;
    private int grade;

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

    @Override
    public String toString() {
        return "Student: " + name + ", Grade: " + grade;
    }
}

class GradeManager {
    private ArrayList<Student> students;

    public GradeManager() {
        this.students = new ArrayList<>();
    }

    public void addStudent(Student student) {
        students.add(student);
    }

    public void printAllStudents() {
        for (Student student : students) {
            System.out.println(student);
        }
    }
}

public class StudentGrade {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        GradeManager gradeManager = new GradeManager();

        Scanner scanner = new Scanner(System.in);
        while (true) {
            String input = scanner.nextLine();
            if (input.equals(".")) {
                break;
            }

            String[] parts = input.split(",");  // 根據`,`分割String

            String name = parts[0].trim();      // 修剪前後空格(此題可不加)
            int grade = Integer.parseInt(parts[1].trim());
            Student student = new Student(name, grade);
            gradeManager.addStudent(student);
        }
        scanner.close();

        gradeManager.printAllStudents();
    }

}