Add Java example as test case

Author: CJCrafter

.gitignore

@@ -26,4 +26,7 @@ gradle.properties
 
 # Maven
 log/
-target/
+target/
+
+# ChatGPT-Java-API Specific Ignore
+src/test/resources/token.txt

src/test/java/JavaTest.java

@@ -0,0 +1,50 @@
+import com.cjcrafter.openai.chat.ChatBot;
+import com.cjcrafter.openai.chat.ChatMessage;
+import com.cjcrafter.openai.chat.ChatRequest;
+import com.cjcrafter.openai.chat.ChatResponse;
+import okhttp3.Response;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.List;
+import java.util.Scanner;
+
+public class JavaTest {
+
+    public static void main(String[] args) throws IOException {
+        Scanner scan = new Scanner(System.in);
+        String key = getToken();
+
+        // Create the initial prompt, we will reuse it later.
+        String initialPrompt = "You are a customer support chat-bot. Write brief summaries of the user's questions so that agents can easily find the answer in a database.";
+        List<ChatMessage> messages = List.of(new ChatMessage("system", initialPrompt));
+        ChatRequest request = new ChatRequest("gpt-3.5-turbo", messages);
+        ChatBot bot = new ChatBot(key);
+
+        // ChatCompletionRequest copies the list, so let's modify the request's
+        // copy of the list.
+        messages = request.getMessages();
+
+        while (true) {
+            System.out.println("Enter text below:\n\n");
+            String input = scan.nextLine();
+
+            // Generate a response, and print it to the user.
+            messages.add(new ChatMessage("user", input));
+            ChatResponse response = bot.generateResponse(request);
+            System.out.println("\n" + response.getChoices().get(0).getMessage().getContent());
+
+            // Save the generated message to the bot's conversational memory
+            messages.add(response.getChoices().get(0).getMessage());
+        }
+    }
+
+    public static String getToken() {
+        try (InputStream stream = JavaTest.class.getResourceAsStream("token.txt")) {
+            Scanner scan = new Scanner(stream);
+            return scan.nextLine();
+        } catch (Throwable ex) {
+            throw new RuntimeException(ex);
+        }
+    }
+}