Ejemplos Single responsibility

import java.util.HashMap;
import java.util.Map;

public class Student {
    private String Name;
    private Map<String, Double> CoursesAndGrades = new HashMap<String, Double>();

    public void EnrollCourse(String courseName) {
        CoursesAndGrades.put(courseName, 0.0); // default grade
    }

    public void AssignGrade(String courseName, double grade) {
        if (CoursesAndGrades.containsKey(courseName)) {
            CoursesAndGrades.put(courseName, grade);
        }
    }

    public double CalculateGPA() {
        // Basic GPA calculation logic
        double sum = 0.0;
        for (double grade : CoursesAndGrades.values()) {
            sum += grade;
        }
        return sum / CoursesAndGrades.size();
    }

    public void PrintTranscript() {
        System.out.printf("Transcript for %s\n", Name);
        for (Map.Entry<String, Double> course : CoursesAndGrades.entrySet()) {
            System.out.printf("%s: %.2f\n", course.getKey(), course.getValue());
        }
        System.out.printf("GPA: %.2f\n", CalculateGPA());
    }
}

import java.util.HashMap;
import java.util.Map;

public class Student {
    private String Name;
    private Map<String, Double> CoursesAndGrades = new HashMap<String, Double>();

    public void EnrollCourse(String courseName) {
        CoursesAndGrades.put(courseName, 0.0); // default grade
    }

    public void AssignGrade(String courseName, double grade) {
        if (CoursesAndGrades.containsKey(courseName)) {
            CoursesAndGrades.put(courseName, grade);
        }
    }
}

public class GPACalculator {
    public double CalculateGPA(Student student) {
        // Basic GPA calculation logic
        double sum = 0.0;
        for (double grade : student.CoursesAndGrades.values()) {
            sum += grade;
        }
        return sum / student.CoursesAndGrades.size();
    }
}

public class TranscriptGenerator {
    private GPACalculator _gpaCalculator;

    public TranscriptGenerator(GPACalculator gpaCalculator) {
        _gpaCalculator = gpaCalculator;
    }

    public void PrintTranscript(Student student) {
        System.out.printf("Transcript for %s\n", student.Name);
        for (Map.Entry<String, Double> course : student.CoursesAndGrades.entrySet()) {
            System.out.printf("%s: %.2f\n", course.getKey(), course.getValue());
        }
        System.out.printf("GPA: %.2f\n", _gpaCalculator.CalculateGPA(student));
    }
}

//Testing the Single Responsibility Principle
public class Program {
    public static void main(String[] args) {
        Student alice = new Student();
        alice.Name = "Alice";
        alice.EnrollCourse("Mathematics");
        alice.AssignGrade("Mathematics", 90);

        GPACalculator gpaCalc = new GPACalculator();
        TranscriptGenerator transcriptGen = new TranscriptGenerator(gpaCalc);
        transcriptGen.PrintTranscript(alice);
    }
}