Java arithmetics for calculating a percentage

Question

I have a little problem in my java application.

I have to calculate the score they have when they finish, I use this method:

public Float ScoreProcent(in         


        

Answer 1

Float num = (float) (100 / questions * correct); 

It is executed in following way:

Float num = (float) ((100 / questions) * correct); 

since type of questions and correct is int, values after decimal are not conisdered.

Now, 100 /questions = 100 / 38 = 2 and, num = (Float)(2 * 28) = 76.

That's what you are getting.