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1 December, 02:32

Assume that an int variable x has already been declared,. write an expression whose value is the last (rightmost) digit of x.

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  1. 1 December, 04:14
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    The last digit is in the tens place.

    Assuming Java:

    int expression = x - (x/10) * 10;

    Because Java truncates decimal, the decimal will be truncated after dividing by 10. For example, if

    int x = 5134

    then x/10 = 513

    Then x/10 * 10 = 5130

    so 5134 - 5130 = 4, which is last digit.
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