Originally Posted by vineet
keeping space in class names is not valid.
Oh yes it is. It is important to note the difference between when there are two class names and one that should have no space. If the name of a class involves two words then they should be joined with an underscore or (maybe) a hyphen. However, when the two words refer to two different classes, showing them as two different words is correct.
@OP, sorry I can't help with your question.