Answers for "how to check a digit is present in a number"

check if the given string is a number

//Add this to your code and call
static private boolean isMyNumber(String s){
        try{
            Integer.parseInt(s);
            return true;
        }catch (Exception e){
            return false;
        }
    }

python check if number contains digit

for number in numbers:
    if '4' in str(number):
        print('{} True'.format(number))
    else:
        print("False")