Summary of Java back-end development interview questions of major companies, and java back-end interview questions
ThreadLocal (thread variable copy)
Synchronized implements Memory sharing. ThreadLocal maintains a local variable
Java interview questions, Java interview questionsInterview is something that everyone has to go through. Most people have more than one interview. Here we will summarize the latest interview
Concise answers to several java interview questions, concise java interview questions
The difference between equal and = in java:
The equal method is used to compare object references u
differences, HashMap and hashtable differences (learn the coding patterns in the underlying JDK for these classes).18, GC is what, why should have GC, simple introduction GC.19, float f=3.4 is correct.20. Introduce the collection framework in Java.21. Implementation of the comparison method in collection framework22. The difference between string and StringBuffer23, final, finally, finalize the difference2
Some days ago, I wrote an article in the blog Park, how to introduce my project experience in the interview, Harvest more than 2000 clicks, which undoubtedly inspired me to continue to share the enthusiasm, today I come to share another interview can even help everyone to reverse the skills, this article is from the Java Web Lightweight Development
English Original: Java Exception and Error interview Questions Answers
In the Java Core Knowledge interview, you always encounter questions about handling exception and error. Exception processing is a very important aspect of
One of the interview summaries: Java handles linked list questions during the interview and java handles themThe linked list is often used in interviews. This article has referenced some other articles and added my own summary. Basically, every algorithm has been tested and
Linked list is often in the interview, this article refers to some other articles, together with the small series of their own summary, the basic algorithm has been tested and optimized.Algorithm Daquan (1) There are also some list problems in the single linked list, which will be sorted out in the future.* REFS:* http://blog.csdn.net/fightforyourdream/article/details/16353519* http://blog.csdn.net/luckyxiaoqiang/article/details/7393134 easy to handle
Logical Thinking interview questions-java backend interview-,-java backend(-1) Preface
I recently participated in an interview and was very interested in the pen questions. I will retur
execution.Surround notification is one of the most common types of notifications. Most interception-based AOP frameworks, such as Nanning and JBOSS4, provide only surround notifications.The concept of pointcut (pointcut) and connection point matching is the key to AOP, which makes AOP different from other old technologies that simply provide interception functionality.The pointcut enables the location notification (advice) to be independent of the OO hierarchy. For example, a around notificatio
Java interview questions, java questions1. simple principles and applications of the Exception Handling Mechanism in C ++ or Java.When a JAVA program violates the JAVA Semantic Rules, the JAVA
Java learning path-simple basic interview questions, java path-Questions
1. What are the features of object orientation?
A: The object-oriented features mainly include the following:
1) Abstraction: Abstraction refers to the process of summarizing the common features of a cl
Java interview questions, java questions1. Can a ". java" source file contain multiple classes (not internal classes )? What are the restrictions?A: Yes, but there can only be one public class. If there is a public class, the file name must be the same as the class name.2. D
Java Exception Handling interview questions, java exception handling questions
1. What are the differences between error and exception?
An error indicates a system-level error. It is an internal error in the java Runtime Environme
Java interview questions, java questionsCommon Java interview questions: What if the main method is declared as private?
Answer: It can be compiled normally, but the system prompts "the
Java exception architecture diagram and several interview questions, java architecture diagram questions
1. java exception Architecture
The pink ones are checked exceptions, which must be captured by the try {} catch Block or dec
original types, and to use the standard placeholders that are used in the JDK.7. Write a generic program to implement LRU caching?This is the equivalent of an exercise for people who like Java programming. To give you a hint, linkedhashmap can be used to implement a fixed-size LRU cache, which moves the oldest key-value pairs out of the cache when the LRU cache is full. Linkedhashmap provides a method called Removeeldestentry (), which is used by the
project, a transaction is made into a service layer through AOP, which enables a business logic operation to be controlled in one transaction if it includes several database operations. 10.Hibernate How it works and why you use it.
Principle:1. Read and resolve configuration files2. Read and parse mapping information, create Sessionfactory3. Open session4. Create transaction transaction5. Persistent operation6. Submission of services7. Close session8 off Sessionfactory
Why to use:1. The encaps
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