arraylist - Efficient way to split a number in Java -

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i'm struggling finding efficient way split digits of number list.

for example, number:

23464646237

and

arraylist <integer> vector;

i want insert in each position of array, digit number, therefore obtaining following output:

vector = {2,3,4,6,4,6,4,6,2,3,7}

how can in clean , efficient way in java ?

thanks in advance

the parseint not needed,

for(int = 0; < numberasstring.length(); i++)     vector.add((int)numberasstring.charat(i) - 48);

this retrieve ascii value of number @ position, subtract 48 value of 0 in table.

number -127 127 cached believe efficient method (note i'm not 100% sure). anyway, tried give way saving parseint call asked most efficient.

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