How do I save an array of integers to json object/array

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Processing.GitHub.io/processing-javadocs/core/processing/data/JSONArray.html#JSONArray-processing.data.IntList-

int[] intsArray = { 3, 0, -1 };
println(str(intsArray));
println();

JSONArray intsJson = new JSONArray(new IntList(intsArray));
println(intsJson);

exit();