refactoring: registerUser Feature Layout in the console

src/main/java/org/example/Administration.java

@@ -210,7 +210,7 @@ public class Administration {
         String UserId = null;
         String UserName = null;
 
-        System.out.println("Enter the type of user (1-Student, 2-Admin, 3-Professor): ");
+        System.out.print("Enter the type of user (1-Student, 2-Admin, 3-Professor): ");
         int userType = scanner.nextInt();
 
 
@@ -218,9 +218,9 @@ public class Administration {
         while(!correctData)
         {
             System.out.println("Enter the User Details!");
-            System.out.println("Name: ");
+            System.out.print("Name: ");
             UserName = scanner.next();
-            System.out.println("ID: ");
+            System.out.print("ID: ");
             UserId = scanner.next();
 
             //Checks if the entered id is already being used
@@ -284,10 +284,6 @@ public class Administration {
         //creates a substring to check if the id-"syntax" is correct
         String substring = userId.substring(1);
 
-        //if(substring == null || substring.isEmpty())
-        //{
-        //    return false;
-        //}
         for(char c : substring.toCharArray())
         {
             if(!Character.isDigit(c))