Is my code correct?

Question

"Each set of items in the data file is terminated by an empty line. Therefore, when the text read in is equal to the empty string (""), you know that there are no more items for the
current category."
while ((line= in.read()) = ""
        System.out.println ("There are no more items for the current category");Is this the most effective way?

Answer 1

What everyone is telling is:
No, it is not right. It is not even a correct approach to do it and it is probably not even the correct Java expression to use.
First off:
Are you responsible for doing the read operation for your project? From what you have said so far, you are just detecting the end of an item list--IF THIS IS THE CASE, then you accept the already read in character as an argument and do your checking. (this caps characters does not mean I am yelling at you--I just want you to not miss it) YOU WILL NOT READ. YOUR PROJECT SHOULD ONLY HAVE ONE READ STATEMENT TO GET YOUR DATA, otherwise, you are NOT going to be able to tell what is list and what is end condition.
2ndly:
a WHILE is a loop. What ever is in the conditional while(condition){} defines when the block it controls is run. The block is run continuously until the conditional evaluates to false. Unless you are responsible for the main read loop, you SHOULD NOT BE READING to change the conditional in the first place.
3rdly:
You need to look through your notes, read the book, study the tutorial, ask the teacher or TA what "=" does.