split int value into separate digits

Question

I want to split my int value into digits. eg if the no. is 542, the result should be 5,4,2.

I have 2 options. 1) Convert int into String & then by using getCharA

Answer 1

This will split the digits for you. Now put them into an array instead of printing them out and do whatever you want with the digits. If you want to add them, you could replace the System.out with something like sum += z;.

public class Splitter {
    public static int numLength(int n) {
        int length;        
        for (length = 1; n % Math.pow(10, length) != n; length++) {}        
        return length;
    }
    public static void splitNums(double x){
        double y, z, t = x;   

        for (int p = numLength((int)x)-1; p >= 1; p--){
             y = t % Math.pow(10, (numLength((int)(t))-1));
             z = ((t - y)/Math.pow(10, p));             
             t = t - (z * Math.pow(10, p)); 

             System.out.println(Math.abs((int)(z)));
        }   
        System.out.println(Math.abs((int)(t)));          
    }
}