lastDigit

Given three ints, a b c, return true if two or more of them have the same rightmost digit. The ints are non-negative. Note: the % "mod" operator computes the remainder, e.g. 17 % 10 is 7.

lastDigit(23, 19, 13) → true
lastDigit(23, 19, 12) → false
lastDigit(23, 19, 3) → true

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public boolean lastDigit(int a, int b, int c) {
   return ((a % 10)==(b % 10) || (b % 10)==(c % 10) || (a % 10)==(c % 10));
}