name: Java Test
on: [push]

jobs:
  java-hello:
    runs-on: [ubuntu-latest]
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Install Java 17 if missing
        run: |
          if ! command -v java >/dev/null; then
            sudo apt-get update
            sudo apt-get install -y openjdk-17-jdk
          fi
        # Installs OpenJDK 17 from Ubuntu’s repos if java isn’t on the PATH :contentReference[oaicite:0]{index=0}

      - name: Verify Java installation
        run: java --version

      - name: Compile & run HelloWorld
        run: |
          cat > HelloWorld.java << 'EOF'
          public class HelloWorld {
            public static void main(String[] args) {
              System.out.println("Hello, Java 17!");
            }
          }
          EOF
          javac HelloWorld.java
          java HelloWorld