private List<String> readJsonFromFile() {
        List<String> strings = new ArrayList<>();

        strings.add(readFile("largesample.json"));
        strings.add(readFile("mediumsample.json"));
        strings.add(readFile("smallsample.json"));
        strings.add(readFile("tinysample.json"));

        return strings;
    }
This is a test app we wrote in 10 minutes. Please do not write code like this, kiddos.
BenchmarkDemo/app/src/main/java/com/bluelinelabs/logansquare/demo/MainActivity.java