LastDigitChecker.java

// Write a method named hasSameLastDigit with three parameters of type int.

//  Each number should be within the range of 10 (inclusive) - 1000 (inclusive). If one of the numbers is not within the range, the method should return false.  

// The method should return true if at least two of the numbers share the same rightmost digit; otherwise, it should return false.  

// EXAMPLE INPUT/OUTPUT:  

// hasSameLastDigit (41, 22, 71); → should return true since 1 is the rightmost digit in numbers 41 and 71
// hasSameLastDigit (23, 32, 42); → should return true since 2 is the rightmost digit in numbers 32 and 42
// hasSameLastDigit (9, 99, 999); → should return false since 9 is not within the range of 10-1000

public class LastDigitChecker {

    public static void main(String[] args) {
        System.out.println(hasSameLastDigit(41, 22, 71));
        System.out.println(hasSameLastDigit(231, 372, 423));
        System.out.println(hasSameLastDigit(91, 991, 532));
    }

    public static boolean hasSameLastDigit (int first, int second, int third){
        if ((first>= 10 && first<= 1000) && (second>= 10 && second<= 1000) && (third>= 10 && third<= 1000)) {
            return ((first % 10 == second % 10) || (first % 10 == third % 10) || (second % 10 == third% 10));
        }
        return false;
    }
}