java developer interview questions

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

Front-end Development interview Knowledge Point outline:HTMLCSS： 对Web标准的理解、浏览器内核差异、兼容性、hack、CSS基本功：布局、盒子模型、选择器优先级及使用、HTML5、CSS3、移动端适应 JavaScript： 数据类型、面向对象、继承、闭包、插件、作用域、跨域、原型链、模块化、自定义事件、内存泄漏、事件机制、异步装载回调、模板引擎、Nodejs、JSON、ajax等。其他： Http://developer.51cto.com/art/201004/192415.htmBrowser compatibility Issue One: different browser tags default external patches and internal patches are differentProblem

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

I haven't written a blog for a while. During a stroll today, I saw a blog titled "A company held an annual" Developer "gathering in South China in April 7-recording a company's written test ". There are Interview Questions recalled by the author. One of the questions attracted the attention of the author. The

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,

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

the task in time ." Comments:These answers emphasize convertible skills (accounting work knowledge) and adaptive skills (finish tasks on time and work harder ). This lack of work experienceProgramPersonnel is necessary. In this case, the knowledge learned at school is also very important and should be emphasized like the "formal" work. Answer Example 2:"In my previous work, I used a lot of the same technologies as I needed to do a good job. Although they are different enterprises, managemen

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

Tags: what garbage programming is common nbsp Program lightweight operation Isolation LEVELIf you are able to effectively and reasonably demonstrate some of the knowledge points given in this chapter during an interview or with a senior personnel exchange, you will be evaluated as "in-depth knowledge of the database" and even with "experience in designing data sheets", even if you say that you have 3 years of experience in database operations for a bu

Php interview questions for medium-level programmers An interview for medium-level php programmers to check whether php developers have reached the medium level, including php and javascript. if you have any need, refer to it.If you are familiar with the following content, it indicates that you have achieved a moderate level of php Development. Generally

10 seconds, Server 20 seconds16. What design patterns do you use in your usual development, and can you talk about the usage scenarios of these design patterns? In peacetime, there are more singleton patterns (used when only one object is instantiated in memory), adapter mode (typically the adapter of the ListView and GridView), builder mode (ALERTDIALOG.BUILDER), the observer pattern may be more subtle, In the Android source code baseadapater the implementation of the notifydatasetchanged (? ）

This section also contains data structures, algorithms, and an array of interview questionsThe difference between List, Set, Map, and Queue (answer)List is an ordered set that allows elements to be duplicated. Some of its implementations can provide constant access time based on subscript values, but this is not guaranteed by the List interface. Set is an unordered collection.The poll () method and the Remove () method differ?Both poll () and remove (

JSP enterprise interview questions (4)5-1. Briefly describe the relationship between Servlet and JSP. JSP is implemented in another way. servlet is an earlier version of JSP. In JSP, it focuses more on the page performance, while in servlet, it focuses more on the implementation of business logic. Therefore, JSP is preferred when the page display effect is complex. Or htmlCodeJSP can be selected when

about XX (specific, such as commodity management, order, shopping cart) module/function of the realization of ideas? What technologies are involved in the implementation process, and can these techniques be introduced? "can refer to" 02_ e-Commerce Project interview questions "Inside the answer"5. How many people are there in your company? Do you have a test? Do you have artwork? What is the staffing of th

Android interview questions 1.Which of the following statements about memory reclaim are correct? (B) A,ProgramThe worker must create a thread to release the memory. B,The memory reclaim program is responsible for releasing useless memory. C,The memory reclaim program allows programmers to directly release the memory. D,The memory reclaim program can release memory objects at a specified time. 2

Reprinted ETL architect interview questions 1. What is a logical data mapping and what does it mean to the ETL team? What is Logical Data ing? What role does it play on the ETL project team? A: Logical Data Map) describes the data definition of the source system, the model of the target data warehouse, and instructions on operations and processing methods to convert the data of the source system to the data

[Finishing]c#. NET common interview questions with Answer (ZT) A friend who is looking for a job may use it. I am not too understand resistance, last week a friend came to me to find a job he tidied up, so I only responsible for posts, the answer to the question to you. --------1. What does object-oriented thinking mainly include? 1 Inherit polymorphic Package//--------2. What is a user Control 2 user contr

function, and CURL can all achieve this. If PHP and Java are integrated, PHP has built-in this mechanism (If PHP and. NET integration. For example, $ foo = new Java ('java. lang. system ');5. CVS and SVN. SVN is known as the next generation of CVS and has powerful functions. However, CVS is a veteran with a high market share. I have been using SVN for a long tim