I'm using Android Studio and I have this String in one of my activities:
[0, 25, 24, 25, 15, 16, 17, 25, 24, 21, 24]
and I want to convert it to a int[] :
{0, 25, 24, 25, 15, 16, 17, 25, 24, 21, 24};
How do I do that? I tried the code below, but it's not returning the correct value.
int[] intArray = new int[string.length()];
for (int i = 0; i < string.length(); i++) {
intArray[i] = Character.digit(string.charAt(i), 10);
}
This is called "parsing". You will need to solve this with your own code. There is no built-in method in Java or Android to do so. You should look at the methods available in the String class, especially matches() and split().
On Android, you can make use of org.json.JSONArray:
JSONArray jsonArray = new JSONArray(arr); // throws JSONException
int length = jsonArray.length();
int[] results = new int[length];
for (int i = 0; i < length; ++i) {
results[i] = jsonArray.get(i);
}
String[] arr = [...];
int[] ints = new int[arr.length()];
for(int i = 0 ; i < arr.length() ; i++){
ints[i] = Integer.parseInt(arr[i]);
}