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Thread: why it is essential to use (int) ?

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    Default why it is essential to use (int) ?

    int x;
    x= (int) (7.0/2);
    I need to know why it is essential to use (int) in the statement above?
    What is it called?
    How it would be without (int), is it correct?


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    Default Re: why it is essential to use (int) ?

    Its because your trying to use a float... 7.0 is a float value, But stating (int) is just like parsing it to an int from a float which it currently is.

    7.0 = Decimal point number = Float
    7 = no Decimal Point = int
    you are saying 7.0 divided by 2.. although your saying that the answer will equal the int x.

    So long story short.. you cannot use a float value as an int unless u do either (int) or parse the float.

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    Default Re: why it is essential to use (int) ?

    Quote Originally Posted by websit View Post
    int x;
    x= (int) (7.0/2);
    I need to know why it is essential to use (int) in the statement above?
    What is it called?
    How it would be without (int), is it correct?
    Because the literal "7.0" is implicit double value, so the result of 7.0/2 will be a double number, theno you need to put a type cast (int) to convert the result into an integer which is assigned to the variable x which is an integer.

    java exception
    Last edited by hns1984; January 11th, 2012 at 05:54 PM.

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    Default Re: why it is essential to use (int) ?

    Quote Originally Posted by macko View Post
    7.0 = Decimal point number = Float
    Wrong, float literal is a double value, implicitly.

    java exception
    Last edited by hns1984; January 11th, 2012 at 05:54 PM.

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    Default Re: why it is essential to use (int) ?

    ahh, My bad it gets abit confusing when handling all the difference number types of java.