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Thread: need help..

  1. #1
    Junior Member
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    Default need help..

    can someone explain how does the range for int comes out to be -231 to (231-1)...i mean , we can also fit 231 inside this range....???? why -1 ????

  2. #2
    Super Moderator jps's Avatar
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    Default Re: need help..

    Welcome datus
    0 offset the balance on the positive side

  3. The Following User Says Thank You to jps For This Useful Post:

    datus (August 11th, 2013)

  4. #3
    Grand Poobah
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    Default Re: need help..

    Read about 2's compliment
    Improving the world one idiot at a time!

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    jps (August 11th, 2013)

  6. #4
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    Default Re: need help..

    Hello.
    Java uses 2's complement representation for storing numbers.
    And an integer occupies 4 bytes of memory.
    With this much knowledge just spend some time on how to store signed numbers using 2's complement. You should be able to get the range.

    Syed.