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UniversityManagementSystem.java

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import java.util.ArrayList;

import java.util.List;

class Student {

private final String name;

private final int id;

private final List<Course> enrolledCourses;

public Student(String name, int id) {

this.name = name;

this.id = id;

this.enrolledCourses = new ArrayList<>();

}

public String getName() {

return name;

}

public int getId() {

return id;

}

public List<Course> getEnrolledCourses() {

return enrolledCourses;

}

public void enrollCourse(Course course) {

enrolledCourses.add(course);

}

public void dropCourse(Course course) {

enrolledCourses.remove(course);

}

public double calculateGPA() {

double totalCredits = 0;

double totalGradePoints = 0;

for (Course course : enrolledCourses) {

totalCredits += course.getCredits();

totalGradePoints += course.getCredits() * course.getGrade();

}

return totalGradePoints / totalCredits;

}

}

class Course {

private final String courseCode;

private final String courseName;

private final int credits;

private double grade;

public Course(String courseCode, String courseName, int credits) {

this.courseCode = courseCode;

this.courseName = courseName;

this.credits = credits;

}

public String getCourseCode() {

return courseCode;

}

public String getCourseName() {

return courseName;

}

public int getCredits() {

return credits;

}

public double getGrade() {

return grade;

}

public void setGrade(double grade) {

this.grade = grade;

}

}

public class UniversityManagementSystem {

public static void main(String[] args) {

// Create courses

Course mathCourse = new Course("MATH101", "Introduction to Mathematics", 3);

Course csCourse = new Course("CS101", "Introduction to Computer Science", 4);

// Create students

Student student1 = new Student("Alice", 1);

Student student2 = new Student("Bob", 2);

// Enroll students in courses

student1.enrollCourse(mathCourse);

student1.enrollCourse(csCourse);

student2.enrollCourse(mathCourse);

// Set grades for courses

mathCourse.setGrade(3.5);

csCourse.setGrade(4.0);

// Display GPA for each student

System.out.println("GPA for " + student1.getName() + ": " + student1.calculateGPA());

System.out.println("GPA for " + student2.getName() + ": " + student2.calculateGPA());

}

}