hrm-attendance/test/shuju/Test.java

package shuju;

import com.engine.common.util.DateUtil;
import com.engine.common.util.Utils;
import com.google.common.collect.Lists;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;

public class Test {
    public static void main(String[] args) {

        System.out.println(Utils.subtract(1,2));
    }
}