Convert double to int array

Ian Fako :

I have a double

double pi = 3.1415;

I want to convert this to a int array

int[] piArray = {3,1,4,1,5};

I came up with this

double pi = 3.1415;
String piString = Double.toString(pi).replace(".", "");
int[] piArray = new int[piString.length()];
for (int i = 0; i <= piString.length()-1; i++)
   piArray[i] = piString.charAt(i) - '0'; 

It's working but I don't like this solution because I think a lot of conversions between datatypes can lead to errors. Is my code even complete or do I need to check for something else?

And how would you approach this problem?

Rahim Dastar :

I don't know straight way but I think it is simpler:

int[] piArray = String.valueOf(pi)
                      .replaceAll("\\D", "")
                      .chars()
                      .map(Character::getNumericValue)
                      .toArray();