testing actions for java

.github/workflows/main.yml

@@ -0,0 +1,25 @@
+name: CI
+
+on:
+  push:
+    branches: 
+     - testbranch
+
+jobs:
+  build:
+    runs-on: [ubuntu-latest]
+    
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-java@v1
+      with:
+        java-version: '13'
+        java-package: jdk
+        architecture: x64
+    - run: java -version
+#     - name: Run a one-line script
+#       run: echo Hello, world!
+#     - name: Run a multi-line script
+#       run: |
+#         echo Add other actions to build,
+#         echo test, and deploy your project.