A Java calculator web app, build by Maven, CI/CD

Create calculator App

• Sum: sum two numbers and return result
• Subtract: subtract two numbers and return result
• Multiply: multiply two numbers and return result
• Divide: divide two numbers and return result
  • divide by zero should return error message

Create a service to wrap those methods

• Sum: sum two numbers and return result
• Subtract: subtract two numbers and return result
• Multiply: multiply two numbers and return result
• Divide: divide two numbers and return result
  • divide by zero should return error message

• JDK-11
• Maven 3.8.4

Maven execution:

$ mvn clean test

Maven wrapper:

$ mvn wrapper:wrapper -Dmaven=3.8.4

Execute (linux/macos mvnw or windows mvnw.cmd):

$ ./mvnw clean test

Github action ci step definition:

steps:
  # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
  - uses: actions/checkout@v2
  # Runs a single command using the runners shell
  - name: Set up JDK 1.11
    uses: actions/[email protected]
    with:
      java-version: '11'
      distribution: 'zulu'
      cache: 'maven'
  - name: Compile
    run: mvn compile
  - name: Test
    run: mvn verify

TODO