Why does this returns true?

Asked Dec 09 '14 at 18:44

Active Dec 09 '14 at 18:44

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Java newbie here. I was struggling with this for a while and can't get why this happens. When I compare two integers with "==" it always returns true, even if they are not same. Here's an example:

    if (50/41 == 3/3){
        System.out.println("SAME");
    }else{
        System.out.println("NOT SAME");
    }

I appreciate any help and explanation.

asked Dec 09 '14 at 18:44

Amar Kalabić

6

Read about integer division. – Alexis C. Dec 09 '14 at 18:44
6

In particular, what *integer* do you expect the result of 50/41 to be? – Jon Skeet Dec 09 '14 at 18:44
1

You're performing integer (whole number) arithmetic and comparing the results (which are integers). It's basically evaluating `(1 == 1)` which is true. – helrich Dec 09 '14 at 18:45
1

`if (50.0/41 == 3/3){` will not work, This'll be false – Adil Shaikh Dec 09 '14 at 18:46
50/41 = 1. 3/3 = 1. 1 == 1. – Compass Dec 09 '14 at 18:47
I thought everyone did integer division in primary school. My son did it a year ago and he is 9. Perhaps it's easily forgotten!? – Peter Lawrey Dec 09 '14 at 18:47
Yup. It's my fault guys. I feel dumb now lol. Thanks for answers anyway. :( – Amar Kalabić Dec 09 '14 at 18:53

Why does this returns true?

0 Answers0