get last digit of int java

Get the last digit of int java

get last digit of int java

Write a static method named the last digit that returns the last digit of an integer. For example, the last digit(3852) should return 2

import java.util.Scanner;
public class FindLastDigit
{
   static int retnum(int num[])
   {
      System.out.println(num[3]);
   return num[3];
   }
   public static void main(String arg[])
   {
      Scanner input = new Scanner(System.in);
      int return_num[] = new int[4];
      int num[] = new int[4];
      for (int i = 0; i<4 ; i++ ){
         num[i] = input.nextInt();
         return_num[i] = num[i];
      }
      retnum(return_num);
   }
}