How to get a json file from raw folder?

InputStream is = getResources().openRawResource(R.raw.json_file);Writer writer = new StringWriter();char[] buffer = new char[1024];try {    Reader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));    int n;    while ((n = reader.read(buffer)) != -1) {        writer.write(buffer, 0, n);    }} finally {    is.close();}String jsonString = writer.toString();

ObjectMapper.readValue also take InputStream as source . Get InputStream using openRawResource method from json file and pass it to readValue :

InputStream in = getResources().openRawResource(R.raw.user);User user = mapper.readValue(in, User.class);

Kotlin way :

val raw = resources.openRawResource(R.raw.posts)        val writer: Writer = StringWriter()        val buffer = CharArray(1024)        raw.use { rawData ->            val reader: Reader = BufferedReader(InputStreamReader(rawData, "UTF-8"))            var n: Int            while (reader.read(buffer).also { n = it } != -1) {                writer.write(buffer, 0, n)            }        }        val jsonString = writer.toString()