[FIXED] Java convert String[] to int[]

Issue

I have a String[], where each element is convertible to an integer. What’s the best way I can convert this to an int[]?

int[] StringArrayToIntArray(String[] s)
{
    ... ? ...
}

Solution

public static int[] StringArrToIntArr(String[] s) {
   int[] result = new int[s.length];
   for (int i = 0; i < s.length; i++) {
      result[i] = Integer.parseInt(s[i]);
   }
   return result;
}

Simply iterate through the string array and convert each element.

Note: If any of your elements fail to parse to an int this method will throw an exception. To keep that from happening each call to Integer.parseInt() should be placed in a try/catch block.

Answered By – jjnguy

Answer Checked By – David Marino (Easybugfix Volunteer)

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