Added dropStudentFromCourse feature in Main class

src/main/java/org/example/Main.java

@@ -1,6 +1,7 @@
 package org.example;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Map;
 import java.util.Scanner;
 
 public class Main {
@@ -57,6 +58,32 @@ public class Main {
                     break;
                 case 5:
                     // Drop Student from Course
+                    System.out.println("Enter Student ID");
+                    String studentID = scanner.next();
+                    System.out.println("Enter Course ID");
+                    String courseIdToDrop = scanner.next();
+
+                    Student student = administration.findStudentById(studentID);
+                    Course course = administration.findCourseByID(courseIdToDrop);
+
+                    Map<Course, String> studentCourses = student.getCourseGrades();
+                    if (student != null && course != null) {
+
+                        if(studentCourses.containsKey(course)){
+                            studentCourses.remove(course);
+                            student.setCourseGrades(studentCourses);
+                            System.out.println("Student has been dropped from the choosen course");
+                        }
+                        else{
+                            System.out.println("Student was not in this course");
+                        }
+
+                    } else {
+                        if (student == null) System.out.println("Student ID not found.");
+                        if (course == null) System.out.println("Course ID not found.");
+                    }
+
+
                     break;
                 case 6:
                     // Create Course