How to add the odd placed digits of an integer??

Question

If an integer is1234 then find out the 2+4= 6 and if integer is 12345 then also it is 2+4 =6??

Answer 1

● first check if number of digits in 'n' is odd or even, if odd then take n directly, else use (n/10)
● use loop or recursion till n becomes 0, it will look like : (n%10) + method(n/100)

//in java

Answer 2

You need to use Strings and character methods and a loop to go over the String

example:

int i = 0;
String s = "12345"; // or use a scanner for user input

for(int k = 1; k < s.length()-1 ; k + 2){

char c = s.charAt(k);
//get the character from the string at a specified position k

int j = Character.getNumericValue(c);
//converts the character to a usable integer

i = i + j; //adding the integers
}

System.out.print(i);