[游戏开发]比较时间Date

比较时间大小

package com.fan.test;

import com.fan.dto.PersonDTO;
import com.fan.entity.Person;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

/**
 * @author およそ神
 * @version JDK 1.8
 */
public class TimeUtils {
    public static void main(String[] args) throws ParseException {
        String time1 = "2018-00-00 00:00:01";
        String time2 = "2018-00-00 00:00:03";
        String time3 = "2018-00-00 00:00:06";
        String time4 = "2018-00-00 00:00:05";
        List<Cat> cats = new ArrayList<>();
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date date1 = format.parse(time1);
        Date date2 = format.parse(time2);
        Date date3 = format.parse(time3);
        Date date4 = format.parse(time4);
        Cat cat1 = new Cat(1, "cat1", date1);
        Cat cat2 = new Cat(2, "cat2", date2);
        Cat cat3 = new Cat(3, "cat3", date3);
        Cat cat4 = new Cat(4, "cat4", date4);
        cats.add(cat1);
        cats.add(cat2);
        cats.add(cat3);
        cats.add(cat4);
        Cat catResult = cat1;
        for (Cat cat : cats) {
            if (catResult.getTime().compareTo(cat.getTime()) == -1) {
                catResult = cat;
            }
        }
        System.out.println(catResult);
        //bigOrSmall(beginTime,endTime);
    }
    static Integer bigOrSmall(String beginTime,String endTime) {
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        try {
            Date date1 = format.parse(beginTime);
            Date date2 = format.parse(endTime);
            int compareTo = date1.compareTo(date2);
            System.out.println(compareTo);
            return compareTo;
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return null;
    }
}

《新程序员》：云原生和全面数字化实践

50位技术专家共同创作，文字、视频、音频交互阅读