🖥️ JavaHelperApp

A simple yet powerful Java CLI application that answers Java-related questions instantly.
It uses a structured knowledge.json file as its knowledge base and provides:

✅ Instant Q&A
✅ History of asked questions
✅ Export to CSV/JSON
✅ Expandable knowledge base (just add more questions!)

---

📂 Project Structure

JavaHelperApp/
├─ pom.xml
├─ README.md
├─ src/
│   ├─ main/
│   │    ├─ java/
│   │    │    └─ com/javahelper/
│   │    │    ├─ Main.java
│   │    │    ├─ qa/
│   │    │    │ ├─ QAEngine.java
│   │    │    │ └─ KnowledgeBase.java
│   │    │    └─ utils/
│   │    │    └─ ConsoleUtils.java
│   │    └─ resources/
│   │    └─ knowledge.json
└─ src/test/
     └─ java/
         └─ com/javahelper/
         ├─ QAEngineTest.java
         └─ ConsoleUtilsTest.java

---

🚀 Getting Started

1️⃣ Clone the repository

git clone https://github.com/yourusername/JavaHelperApp.git
cd JavaHelperApp

2️⃣ Build with Maven

mvn clean compile

3️⃣ Run the app

mvn exec:java -Dexec.mainClass="com.javahelper.Main"

📖 Usage

• Once running, you’ll see a menu:

=== Java Helper CLI ===

Menu:
1. Ask a Java Question
2. Show Q&A History
3. Export History CSV/JSON
0. Exit

Example Usage

Choose option: 1
Enter your question: What is Java?
Answer: Java is a high-level, object-oriented programming language developed by Sun Microsystems (now Oracle).