api/src/test/java/com/xjrsoft/xjrsoftboot/DateTime.java

package com.xjrsoft.xjrsoftboot;

import cn.hutool.core.date.DateUtil;
import org.junit.jupiter.api.Test;

import java.util.ArrayList;
import java.util.List;

public class DateTime {
    @Test
    public void DateTimeTest(){
        cn.hutool.core.date.DateTime now = DateUtil.date();
        System.out.println(now.dayOfWeek());
    }

    @Test
    public void collectionTest(){
        Long num1 = 23L;
        Long num2 = 25L;
        List<Long> list = new ArrayList<>();
        list.add(num1);
        list.add(num2);
        Long num3 = 23L;
        List<Long> classIdList = new ArrayList<>();
        System.err.println(list.contains(classIdList));
    }
}