diff --git a/TicTacToe/.gitignore b/TicTacToe/.gitignore
new file mode 100644
index 00000000..aefc6994
--- /dev/null
+++ b/TicTacToe/.gitignore
@@ -0,0 +1,4 @@
+*.class
+.vscode/
+bin/
+out/
\ No newline at end of file
diff --git a/TicTacToe/README.md b/TicTacToe/README.md
new file mode 100644
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+++ b/TicTacToe/README.md
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+## Getting Started
+
+Welcome to the VS Code Java world. Here is a guideline to help you get started to write Java code in Visual Studio Code.
+
+## Folder Structure
+
+The workspace contains two folders by default, where:
+
+- `src`: the folder to maintain sources
+- `lib`: the folder to maintain dependencies
+
+Meanwhile, the compiled output files will be generated in the `bin` folder by default.
+
+> If you want to customize the folder structure, open `.vscode/settings.json` and update the related settings there.
+
+## Dependency Management
+
+The `JAVA PROJECTS` view allows you to manage your dependencies. More details can be found [here](https://github.com/microsoft/vscode-java-dependency#manage-dependencies).
diff --git a/TicTacToe/src b/TicTacToe/src
new file mode 160000
index 00000000..51c0d0be
--- /dev/null
+++ b/TicTacToe/src
@@ -0,0 +1 @@
+Subproject commit 51c0d0be7876bf2c2d398b825c72a0e6fc6a5a0b