java spring interview questions

Multithreading and concurrency issues are among the questions that interviewers prefer to ask in a Java technology interview. Here, the most important questions are listed from the interview point of view, but you should still have a solid grasp of the basics of

Java programmer interview questions (86-115) 86. In Struts 2, how does Action obtain the data that the user inputs from the page, and how does it transmit its own data to the view? A: There are three ways for Action to retrieve data from the page: 1) accept parameters through the Action attribute 2) obtain parameters through the domain model 3) ModelDriven )

message (such as Json, XML, and so on) into an object, converting the object to the specified response information. Data transformation: Data conversion for a request message. such as string conversion to Integer, double, and so on. Data is initialized: Data is formatted for the request message. such as converting a string into a formatted number or a formatted date. Data validation: Verify the validity of the data (length, format, etc.), and verify that the results are stored in Bi

adapter pattern? Ø database How are you usually optimized, what other tools are used to optimize no, how to use the Ø Now there is a lot of tables to correlate the query SQL, the child table data is very much, then you only from the SQL point of view of the SQL statement optimization, do not need to consider the index, predicate Ø you don't have a Java project, do you? Ø your major is to control the direction, why do the current direction O you have

Module Context Module Expression Language Module JDBC Module ORM Module OXM Module Java Messaging Service (JMS) module Transaction Module WEB Module Web-servlet Module Web-struts Module Web-portlet Module 3. Spring Ioc/di (Control inversion/dependency injection) The simple understanding is that the life cycle of the objects used in this program

The Java Collection framework is the foundation of the Java programming language and is an important knowledge point in the Java interview. Here, I've listed some important questions and answers about the Java collection.In additi

The Java Collection framework is the foundation of the Java programming language and is an important knowledge point in the Java interview. Here, I've listed some important questions and answers about the Java collection.In additi

, beanpostprocessor will process it and automatically create a proxy object for the bean that satisfies the matching rule.http://blog.csdn.net/itomge/article/details/8861268http://uule.iteye.com/blog/894055Spring Weaving Concept Weaving (Weaving): The process of applying a facet (Aspect) to a target object to create a new proxy object, which generally occurs in the following time: compile time : When a class file is compiled, this requires a special compiler to do so, such as AspectJ's

I used to have only one Java interview question topic. Now I have divided into the following topics: Java interview questions are of course the focus, all of which are Java programming and directly related to the design. Intelli

Transferred from: http://icyfenix.iteye.com/blog/715301The background of this post is tonight to see JE on this posting: http://www.iteye.com/topic/715256, the words written on impulse, if you can, can have other interviewers to analyze their interview questions asked, it may be a very meaningful thing. In the company as a technical interviewer for a few years, from graduating students to work more than 10

, StringBuilder and StringBufferStorestring constant, which cannot be changed once the object is createdStringBuilder and StringBuffer: String variables, objects can be changedExecution speedstringThread SafetyString,stringbuilder is thread insecure, StringBuffer is thread-safe.Scope of applicationString: Applies to a small number of string operationsStringBuilder: For a single thread, large number of string operationsStringBuffer: For multi-threading, a large number of string operations3. Singl

dispatch and dispatch, and a smaller unit that can run independently than a process. Thread's StrokeThe sub-scale is less than the process, which makes the multi-threaded procedure highly concurrency, and the process typically has independent memory units at execution time, while the threads can share memory. Programming with multithreading often leads to better performance and user experience,But multithreaded programs are unfriendly to other programs because they may consume more CPU resource

Java and C common technical interview questions 2015 (Continuous updates ...), 2015 updating 1. Differences between overwrite and overload Overload is an Overload. It uses the same name as an existing member to declare attributes or methods, but the parameter list is different from that of the original member. Override is mainly used for method rewriting between

Java Collection related interview questions and answers Interview questions1.JavaWhat is a collection frame? What are some of the advantages of a collection framework? There are collections in each programming language, and the original Java version contains several collect

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