摘要：String timeStr = "2019-08-26 18:03:33"; DateTimeFormatter timeDtf = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"); LocalDateTime localDateTime = LocalDateTime.parse(timeStr, tim... 阅读全文

摘要：import java.text.ParseException; import java.text.SimpleDateFormat; import java.time.LocalDateTime; import java.time.format.DateTimeFormatter;import j 阅读全文

摘要：import java.util.ArrayList; import java.util.List; import com.test.lambda.Person.Sex; public class Lambda03 { public static void main(String[] args) { 阅读全文

摘要：package com.test.lambda; public class Person { enum Sex{ MALE,FEMALE } private String name; private Sex sex; private int age; public String getName() 阅读全文

摘要：package com.test.lambda; public class Lambda02 { public static void main(String[] args) { new LoginAction() { @Override public void excute(String use) 阅读全文

摘要：语法： 1.():参数列表 2.->:专用连接符 3.{}:代码块 package com.test.lambda; public class Lambda01 { public static void main(String[] args) { new Runnable() { @Override 阅读全文