Java

Java Xiao Ming A+B

title Problem A: Xiao Ming A+BTime Limit: 1 Sec Memory Limit: 128 MBDescription Xiaoming this year 3 I'm old , Now he can get to know each othe...
2020-10-22 14:59 views 1

Chrome OS, For programmers and Windows What does it mean ? Internet Marketing

　　Chrome OS and Chrome Web Store Finally, it's officially released , It's like this release , Not like Microsoft Windows7,Phone7 This is very dy...
2020-10-04 03:20 views 2

【JAVA】【 Huawei campus recruitment written examination - Software 】2020-09-09

Three questions of Huawei ,100+200+300,100 pass , Just do the first question right , I wish you all the best offer, Don't panic , Don't worry , Pe...
2020-09-09 21:09 views 3

That's what you should know Mybatis-Plus Skills

Recently in use Mybatis-Plus, Um. , It's delicious !!! Let's talk about it today Mybatis-Plus How to use them 1, Condition query （QueryWrapper）...
2020-08-19 10:17 views 6

Java Basic usage of annotation

Notes on basic concepts ( metadata ) It provides a formal way for us to add information to our code , We can use this data very conveniently at so...
2020-08-18 07:03 views 3

Java Written interview - Reflection and dynamic proxy

reflex    The reflection mechanism is Java A basic function provided by language , Giving programs introspection at run time （introspect） The ab...
2020-08-18 07:03 views 2

Java Interview questions are required 50 Avenue （ With answers ）4

31,String s=new String(“xyz”); Several string objects are created ? answer ： Two objects , One is static storage xyz, One is to use new Creating ob...
2020-08-18 07:03 views 2

JAVA Learning -- Static proxy VS Dynamic proxy

The origin of this blog , Before we learned big talk design , You'll understand the proxy model , But why ? reason ：1, adopt DRP This project , Le...
2020-08-18 07:03 views 2

Object oriented programming 6 Understanding of the basic principles

Single responsibility principle definition ： A class should be a set of highly relevant functions , Data encapsulation . practice ： Based on ...
2020-08-18 07:02 views 2

Android And Design patterns （2）—— Factory model

Factory mode does not expose creation logic to users , And by using a common interface to point to the newly created object . Take the simple fac...
2020-08-18 07:02 views 2
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