feat: implement required features

src/CourseRegistrationStarter/Course.java

@@ -1,37 +1,45 @@
 package CourseRegistrationStarter;
 
-public class Course {
+public class Course
+{
     private String courseName;
     private String courseCode;
     private int capacity;
 
-    public Course(String courseName, String courseCode, int capacity) {
+    public Course(String courseName, String courseCode, int capacity)
+    {
         this.courseName = courseName;
         this.courseCode = courseCode;
         this.capacity = capacity;
     }
 
-    public String getCourseName() {
+    public String getCourseName()
+    {
         return courseName;
     }
 
-    public String getCourseCode() {
+    public String getCourseCode()
+    {
         return courseCode;
     }
 
-    public int getCapacity() {
+    public int getCapacity()
+    {
         return capacity;
     }
 
-    public boolean reduceCapacity() {
-        if (capacity > 0) {
+    public boolean reduceCapacity()
+    {
+        if (capacity > 0)
+        {
             capacity--;
             return true;
         }
         return false;
     }
 
-    public void increaseCapacity() {
+    public void increaseCapacity()
+    {
         capacity++;
     }
 }