import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.Map.Entry;

import javax.json.Json;
import javax.json.JsonArray;
import javax.json.JsonObject;
import javax.json.JsonReader;
import javax.json.JsonStructure;
import javax.json.JsonValue;
import javax.json.JsonValue.ValueType;

public class ReadJson {

	public static void main(String[] args) {
		FileReader fr;
		JsonStructure struct;
		try {
			fr = new FileReader("test.txt");
			JsonReader reader = Json.createReader(fr);
			struct = reader.read();
			JsonValue value = struct;
			print(value);
			reader.close();
			fr.close();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	private static void print(JsonValue value) {
		JsonObject object = null;
		if (value.getValueType() == ValueType.OBJECT) {
			object = (JsonObject) value;
			for (Entry<String, JsonValue> set : object.entrySet()) {
				if (set.getValue() instanceof JsonArray) {
					System.out.println("Array: ");
					print((JsonValue) set.getValue());
				} else {
					System.out.println(set.getKey() + ": " + set.getValue());
				}
			}
		} else if (value.getValueType() == ValueType.ARRAY) {
			JsonArray array = (JsonArray) value;
			for (JsonValue val : array)
				print(val);
		}
	}
}