Add ci.yml

Author: Michael31416

.github/workflows/ci.yml

@@ -0,0 +1,25 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+      with:
+        fetch-depth: 0  # Fetch all history for all branches
+
+    - name: Set up JDK 11
+      uses: actions/setup-java@v2
+      with:
+        distribution: 'adopt'
+        java-version: '8'
+
+    - name: Run Spotless Check
+      run: mvn spotless:check
+
+    - name: Compile Project
+      run: mvn compile