CODEWITHSUNDEEP
javainteger
Leo Jiang
Leo Jiang

Reputation: 26085

How can I divide without flooring in Java?

I'm trying to divide an integer by an integer in Java and return a long result. I tried the following, but I keep getting "0".

System.out.println(Long.valueOf(5) / Long.valueOf(18));
System.out.println((long)5 / (long)18);

Upvotes: 5

Views: 11787

Answers (4)

AlanFoster
AlanFoster

Reputation: 8306

It seems everyone has given the right answer, but you should note you can also do

System.out.println(5 / 18f)

Where f makes it a float

System.out.println(5 / 18d)

where d makes it a double

Upvotes: 6

Robert Rouhani
Robert Rouhani

Reputation: 14678

Longs are still integral, you need a type that can handle decimals, use either float or double.

System.out.println(5.0 / 18.0);

Upvotes: 4

Aurelio De Rosa
Aurelio De Rosa

Reputation: 22152

Long is for "long" integer numbers. You should use float or double instead.

Upvotes: 5

Sergey Kalinichenko
Sergey Kalinichenko

Reputation: 726569

You don't need a long, you need a double.

System.out.println(5 / 18.0);

or

System.out.println(5.0 / 18);

Of course this will work too:

System.out.println(5.0 / 18.0);

Upvotes: 7

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