java interview programs

Translated by Peter Seibel/Hao peiqiang This article is an interview with Joshua Bloch, Chief Java architect of Google, by Peter Seibel, expert of commmon lisp, talking about what books programmers should read, how they can quickly get familiar with a new language, and why they choose programming languages is like choosing a bar. 　　 　　Seibel: How did you start programming? Bloch: I think this is because of

Reference Address: http://blog.csdn.net/speedme/article/details/22398395A few words like, copy down: There was no collection on Earth (only the array reference C language) but someone wanted it, so there was a collection Some people want an array that can be automatically expanded, so there's a list Some people want to have no duplicate arrays, so there's set Some people want to have automatic sorting of the number of groups, so with treeset,treelist,tree** Same point:1

because they do not have any implementations.Code. After a class implements an interface, this class implements all the methods and attributes in the interface, and the attributes in the interface are under the default state are public static, and all methods are public by default. A class can implement multiple interfaces. 3. Advantages and principles of garbage collection. Two recovery mechanisms are also considered. A notable feature of Java is t

class, which usually causes them to stop executing and to wait for a lock on the object.136, what is a thread pool? Why use it? Creating threads takes expensive resources and time, and if the task is to create a thread, the response time is longer and the number of threads a process can create is limited.To avoid these problems, when the program starts, it creates several threads that respond to processing, called the thread pool, which is called a worker thread.Starting with JDK1.5, the

in the heap instead of the stack, using the final decoration.46. What is GC? Why do you have a GC?GC is the meaning of garbage collection (Gabage Collection), memory processing is where programmers are prone to problems, forgetting or wrong memory recycling can cause program or system instability or even crashes, The GC functionality provided by Java can automatically monitor whether an object exceeds the scope to achieve the purpose of automatically

data is captured, the other party can not distinguish the meaning of each field, then the role of this business number is coming2, if the server is often down, where do you troubleshoot the problem?A: This will be left for you crossing added, can comment replyInterview Skills to supplement these, if you remember anything in addition, if there are other small partners have other suggestions can also be in the comments reply, other interview questions

Notes for compiling cross-platform Java programs-general Linux technology-Linux programming and kernel information. For details, refer to the following. The biggest advantage of using Java to write an application is "one-time compilation and running everywhere". However, this does not mean that all Java

This article will be frequently encountered in the interview of Java Technology Point of a comprehensive in-depth summary, help us in the interview more handy, not to participate in the interview students can also take this opportunity to comb their knowledge system, to check the leakage of the vacancy (read this artic

Three years of Java experience, interview preparation (1), java experience Preface Many things are actually from Baidu on the Internet. The following link is your reference article. Thank you for the link author. Java keywords The Java keyword does not count as much as I per

Regular Interview Questions and answers by a ribaba Java engineer, Baba java 1. Implementation of Spring AOP and IOC Http://blog.csdn.net/tarena_lixy/article/details/7096114 Http://blog.csdn.net/kiss_vicente/article/details/6901295 Http://blog.csdn.net/it_man/article/details/4402245 2. Distributed message queue and distributed cache Message Queue: RabbitMQ, Kafka

JAVA engineer interview questionsZookeeper I went to a company for an interview today. I felt dizzy with my brains. I didn't make a few algorithm questions. The questions were relatively simple. I should have prepared myself, but the status was not good, after the interview, I felt quite dissatisfied. I still had to wa

time priority allocation. Url_hash assigns requests by accessing the URL results so that each URL is positioned to the same back-end server. WebService: is a cross-programming language and remote call technology across the operating system, that is, the server is written in Java, the client program can be written in other programming languages, and the client and server programs can be run on

attention to the bottom of the implementation, the novice programmer as long as familiar with the basic use of methods, you can quickly develop on-line; but for senior programmers, the practice of internal strength is more important , such as algorithms, design patterns, underlying principles, and so on, only after these basic proficiency, in the development process can know its why, when problems can quickly locate the nature of the Problem.For Java

threads in sync. There are two ways to synchronize operations, method synchronization, and code block synchronization. When the Synchronized keyword is added to a method or block of code, it means that when a thread executes here, the object's lock is obtained first, and if the object is not locked, the thread adds a lock to the object and continues execution. While other threads are executing here, because the object is already locked, these threads will only wait for the lock on that object t

Programming experience: Notes for compiling cross-platform Java programs-general Linux technology-Linux programming and kernel information. The following is a detailed description. The biggest advantage of using Java to write an application is "one-time compilation and running everywhere". However, this does not mean that all

The topic comes from http://www.codeceo.com/article/201-java-interview-qa.html, the answer oneself search on the net, if have omission, welcome treatise. Learn together and make progress together. I. Java Fundamentals1. Why is the string class final? 2. HashMap The source code, the realization principle, the bottom structure.3. Tell me about some of the

--- From the computer world daily (Wen/Huang Jian)---- The biggest advantage of using Java to write an application is "one-time compilation and running everywhere". However, this does not mean that all Java programs have cross-platform features. In fact, A considerable number of Java

1. Question: What happens if the main method is declared private?Answer: Can compile normally, but will prompt "Main method is not public" when run.2. Question: What is the difference between a reference and a pass in Java?Answer: A pass-through refers to an address rather than the value itself, and a pass value is a copy of the passed value.3. Question: What else to consider if you want to override the Equals method of an object?Answer: Hashcode.4. Q

Java Interview Essentials Summary set (partial answers)DescriptionIf you're lucky enough to see it,1, the overall framework of this article from @ Ali Liang's blog, summed up very good. Worthy of our study, its blog part of the answer.2, because of their limited ability, failed to achieve the mind that idea, is the first time to write their own, the second time book query3, the article will be put on GitHub

unforgettable interview experience, the biggest harvest or, I am more certain of the interview like to test what knowledge points!Java language, JavaScript, jquery, database, Spring, hibernate, struts are the techniques that Java program apes must master, and I think, in knowledge, you should be prepared for these:1,