public static void main(String[] args) {
TreeMap<String, ArrayList<String>> topicToQuestionMap = Utility.getTopicToQuestionMap();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(baos);
PrintStream old = System.out;
System.setOut(ps);
JsonObject info = new JsonObject();
Gson gson = new GsonBuilder().disableHtmlEscaping().create();
for (Map.Entry<String, ArrayList<String>> entry : topicToQuestionMap.entrySet()) {
String topic = entry.getKey();
ArrayList<String> questions = entry.getValue();
JsonObject quesToSol = new JsonObject();
for (String question : questions) {
baos.reset();
question = question.split("\\.")[0];
Class cls = null;
try {
cls = Class.forName(topic + "." + question);
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
Method method = cls.getMethod("main", String[].class);
method.invoke(null, new Object[] {new String[] {}});
} catch (Exception e) {
System.out.println("This is a helper class to be used by other programs.");
}
System.out.flush();
String solution = baos.toString();
quesToSol.addProperty(question, solution);
}
info.addProperty(topic, gson.toJson(quesToSol));
}
System.setOut(old);
System.out.println(info);
try (BufferedWriter writer = new BufferedWriter(new FileWriter(OUTPUT_FILE))) {
writer.write(info.toString());
} catch (IOException e) {
e.printStackTrace();
}
}
