java inheritance interview questions

Spring Boot interview Questions 1) What is Spring Boot?Spring Boot is a spring module which provides RAD (Rapid application development) feature to Spring framework.It's used to create stand alone spring based application so you can just run because it needs very little spring Config Uration.For more information click here.2) What is the advantages of Spring Boot? Create stand-alone Spring ap

reasonable allocation of server resources Cpu:apache MySQL in high-load environment, disk IO read and write too much, will certainly occupy a lot of resources, it is inevitable that the CPU occupies too high. Memory: Memory library, database software hard disk: file web2.0 architecture Select MongoDB+redis or mysql+Memcached is a better combination, the logic is simple to use NoSQL current main web site architecture LAMP, LNMP, LLMP now there is a lnamp architecture on the network, which is the

using parallelism in Core Data is that each NSManagedObjectContext must be accessed only from the process in which it was created . What is the difference between POST and GET for HTTP?The request for a get type is idempotent according to the HTTP protocol, while the POST request has side effects, that is, get is used to get some resources, and post is used to change some resources, which may create new resources or update existing resources.A POST request is more secure than a GET reques

This article is reproduced. I hope my friend has a good interview question to study ......1. Check whether the process of Android dvm is the same concept as that of Linux.DVM refers to the Virtual Machine of dalivk. Every Android application runs in its own process and has an independent Dalvik Virtual Machine instance. Every DVM is a process in Linux, so it can be considered the same concept. 2. What is the role of the SIM card EF file?Sim card file

This article is reproduced. I hope my friend has a good interview question to study ...... 1. Check whether the process of Android DVM is the same concept as that of Linux. DVM refers to the Virtual Machine of dalivk. Every android application runs in its own process and has an independent Dalvik Virtual Machine instance. Every DVM is a process in Linux, so it can be considered the same concept. 2. What is the role of the SIM card EF file?SIM card fi

I will summarize some common android interview basic questions to see how many questions can you make? 1. What are several intent startup methods? Do you understand each meaning? Here, Android123 reminds you that some Intent tags include FLAG_ACTIVITY_BROUGHT_TO_FRONT, FLAG_ACTIVITY_CLEAR_TOP, struct, struct, FLAG_ACTIVITY_MULTIPLE_TASK, and FLAG_ACTIVITY_NE

I will start looking for a job next year, so I am preparing for some basic data structure knowledge and interview questions. Therefore, I will sort out some questions from time to time here. I found that prime number judgment is a very commonAlgorithm, Basically, many of the questions I have seen involve the determinat

The list is a kind of problem which often appears in the interview, this article uses the Java to realize the common Link list related topic in the interview. This article mainly refers to the integration rewrite the "easy to handle the interview in the list of the topic" and "Algorithm encyclopedia (1) Single list" tw

Php interview questions and answers $ Img = file_get_contents ('http: // www.baidu.com/img/baidu_logo.gif '); File_put_contents('1.gif ', $ img ); Echo ''; ?> 3, Function is_gfriend ($ na, $ nb) { $ Random1 = rand (1/5); // calculate their fate $ Random2 = rand (1, 5 ); If ($ random1 ==$ random2) Retu

Embedded linux engineers interview questions C language basics-general Linux technology-Linux programming and kernel information, the following is a detailed description. I saw an embedded interview on the Internet and suddenly felt very small ...... In the future, I will post my answers one after another. Of course, some of my answers may not be accurate, and th

the Java 5 annotation.Spring's MVC Framework64. What is the Spring MVC framework?Spring provides a full-featured MVC framework for building Web applications. The spring framework can be easily fused with other MVC frameworks (such as struts), which uses the inversion of control (IOC) to separate the controller logic from the business object. It also allows the request parameters to be bound declaratively on the business object.65.DispatcherServletThe

Ordinary PHP Programmer pen TestTags: programmer PHP interview 2009-02-06 15:191. Use PHP to print out the day before, the print format is May 10, 2007 22:21:212. PHP code is as follows:$a = "Hello";$b =amp; $a;Unset ($b);$b = "World";echo $a;What is the result?3. PHP code is as follows:$STR = "CD";$ $str = "Landog";$ $str. = "OK";Echo $CD;What is the result?4. Write a code with PHP, implementation does not use the 3rd variable, Exchange $a, $b value,

The php interview questions collected on the Internet are posted for you in the php tutorial! I. Basic Questions 1. What is object-oriented? What are the main features? A face object is an elegant method to directly map objects and concepts in nature to the program world! Main features: abstraction, inheritance, encaps

25 JavaScript interview questions you need to know 1. Usetypeof bar === "object"JudgmentbarIs an object having potential drawbacks? How can we avoid such disadvantages? UsetypeofThe disadvantage is obvious.instanceof): let obj = {};let arr = [];console.log(typeof obj === 'object'); //trueconsole.log(typeof arr === 'object'); //trueconsole.log(typeof null === 'object'); //true According to the output,type

Summary of the latest PHP classic interview questions in 2017 (previous article), and last article in 2017 1. Difference Between Double quotation marks and single quotation marks Double quotation marks are used to interpret variables. Insert single quotes in double quotes. If there is a variable in single quotes, the variable is interpreted. A variable name in double quotation marks must be followed

IOS interview questions: basic concepts of OC 1. What are classes and objects? Class is the abstraction of a group of things with the same features and functions Describes the features and behavior of an object. Class is the abstract object of an object is an instance of a class. 2. Define classes in OC, create objects, and use objects. Classes defined in OC are divided into interfaces and implementati

, frequent new/delete is bound to cause memory space discontinuity, resulting in a large number of fragments, so that program efficiency is reduced. For the stack, there is no problem, because the stack is advanced out of the queue, they are so one by one correspondence, so that there will never be a memory block from the middle of the stack poppedAllocation method: The heap is dynamically allocated and there are no statically allocated heaps. Stacks are allocated in 2 ways: static allocation an

、 Controller 非常薄，只起到路由的作用，而 View 非常厚，业务逻辑都部署在 View。所以，Backbone 索性取消了 Controller，只保留一个 Router（路由器）Mvp MVP 模式将 Controller 改名为 Presenter，同时改变了通信方向。 View ==> Presenter ==> Model Model ==> Presenter ==> View 1、 各部分之间的通信，都是双向的。 2、View 与 Model 不发生联系，都通过 Presenter 传递。 3、View 非常薄，不部署任何业务逻辑，称为"被动视图"（Passive View），即没有任何主动性，而 Presenter非常厚，所有逻辑都部署在那里。MVVMMVVM 模式将 Presenter 改名为 ViewModel，基本上与 MVP 模式完全一致。 唯一的区别是，它采用双向绑定（data-binding）：View的变动，自动反映在 ViewModel，反之亦然。Angular 和 Ember 都采用这种模式。

My android interview path (5: Do you have any questions ?), Android pathWhat else do you want to ask? Okay, the typographical problem is that I do not like to use punctuation marks (,.) I like it. I see a funny question, but almost every interviewer has met and knows what it means. Under normal circumstances, if the technical side encounters this sentence, it should be a joke. At this time, the interviewer

2018.03.09 Shenzhen le Wei TechnologyI looked at the feeling that the company looks pretty good, interview my husband is also very good, the atmosphere should be very good, but I lack of strength, alas, successive efforts, the following interview in the deep impression of the three questions to write about.Interview Question 1: The database deletes duplicate data