SharedDigit.java

// Write a method named hasSharedDigit with two parameters of type int.  

// Each number should be within the range of 10 (inclusive) - 99 (inclusive). If one of the numbers is not within the range, the method should return false.  

// The method should return true if there is a digit that appears in both numbers, such as 2 in 12 and 23; otherwise, the method should return false.

//   EXAMPLE INPUT/OUTPUT:  

// hasSharedDigit(12, 23); → should return true since the digit 2 appears in both numbers
// hasSharedDigit(9, 99); → should return false since 9 is not within the range of 10-99
// hasSharedDigit(15, 55); → should return true since the digit 5 appears in both numbers
 

public class SharedDigit{

    public static void main(String[] args) {
        System.out.println(hasSharedDigit(12, 23));
        System.out.println(hasSharedDigit(9, 99));
        System.out.println(hasSharedDigit(15, 55));
         }


    public static boolean hasSharedDigit(int a, int b) {
        boolean answer = false;
        int lefta = a/10;
        int righta = a % 10;
        int leftb = b/10;
        int rightb = b % 10;
        if(lefta == leftb || lefta == rightb || righta == leftb || righta == rightb){
            answer = true;  
        }
        return answer;
    }
}