Question

/* Given three ints, a b c, return true if two or more of them have the same

* rightmost digit. The ints are non-negative.
*/
public boolean lastDigit(int a, int b, int c)

Answer 1

The exercise is from the field of Computers and Technology, specifically regarding programming. The provided method 'lastDigit' uses the modulo operator to compare the last digits of three integers and returns true if two or more have the same last digit.

Step-by-step explanation:

Understanding the Code

The student's question involves a programming exercise where the last digit of three given non-negative integers is examined. The code provided is a boolean method called lastDigit which returns true if at least two of the numbers have the same rightmost digit. The key operation used to achieve this is the modulo operator '%', which finds the remainder after division of one number by another - in this case, 10. The comparisons are made using logical OR operators to determine if any two of the three possible pairs of numbers have the same remainder when divided by 10, indicating they have the same last digit.