build

Fix amount divided by #42

	name: build
	on: [push, pull_request]

	jobs:
	build:
	strategy:
	matrix:
	os: [ubuntu-20.04]
	runs-on: ${{ matrix.os }}
	steps:
	- name: checkout repository
	uses: actions/checkout@v2
	with:
	fetch-depth: 0
	- name: validate gradle wrapper
	uses: gradle/wrapper-validation-action@v1
	- name: setup jdk 11
	uses: actions/setup-java@v1
	with:
	java-version: 11
	- name: make gradle wrapper executable
	if: ${{ runner.os != 'Windows' }}
	run: chmod +x ./gradlew
	- name: build
	run: ./gradlew build
	- name: format check
	run: ./gradlew spotlessCheck

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