Why is the */ important

Answer 1

You mean for commenting with /* [comment] */ ?
/* starts a comment and this comment only end once it reaches */. This way you can have a comment over multiple lines.

Answer 2

haha forget this when complie error

Answer 3

Its the ending of a multiline coment. if you dont write the */ after a multi line comment it would continue to reguster everything after the begining /* as part of that comment

Answer 4

For single line comment you use // and that's it!
But if you are using multiple line comments, then you have to put an end to the comment indicator. The syntax tells you that /* Place here your comment */ is the correct form. If you do not use */, then all the rest of the code after the /* will be a "comment".

Answer 5

thanks guys