basic java interview questions and answers

servlet frameworkPage JSP page itselfException for the error webpage, exceptions not captured72. What actions does jsp have? What are their roles?A: JSP has the following 6 basic actions:Jsp: include: Introduce a file when the page is requested.Jsp: useBean: Find or instantiate a JavaBean.Jsp: setProperty: Set attributes of JavaBean.Jsp: getProperty: outputs the attributes of a JavaBean.Jsp: forward: Transfers requests to a new page.Jsp: plugin: gene

environment. The Web container is more of a deal with HTTP-based requests. And the EJB container is not. It is more about dealing with databases and other services. But they are all interacting with the outside world to reduce the burden on the application. For example, the servlet does not care about the details of HTTP, directly referencing the environment variable session,request,response, EJB does not care about the database connection speed, various transaction control, directly by the con

Summary and Induction of JAVA interview questions of Niuke Network (1), Niuke javaPreface Today, I saw an article on explaining the Spring framework in the Nuggets. The article mentioned Niu Ke's interview questions. As a result, I downloaded the Niuke web app and found that

Java Collections Interview QuestionsIn Java, collection interview questions is mostly asked by the interviewers. Here are the list of mostly asked collections interview questions with

common Linux commands is: Command [Option] [parameter] Command Option [parameter] Command [Option] [parameter] Command Option Parameter A: The correct syntax for Linux commands is: Command [Option] [parameter]. Q.11: Make a difference. Vi Vim Cd Nano A: cd is different from other commands. Vi, vim, and nano are both editors used to edit documents, while cd is used to switch directories. That's all. How many questions have you lear

XML interview questions include XSLT techniques for transforming XML files, xpath,xquery, and XML basics such as DTDs or schemas. This article will see 10 common XML interview questions and answers. Most of these questions are as

that this stage will bring me higher expectations, of course, the interview when normal people will not remember the spelling of each parameter, I wrote this paragraph when I also turned over the manual. The answer to this section is less than 2%.PS: Add up to less than 100%, is because there are really few directly say do not know, or directly refused to answer = =#Analyze the second question: "What is the Thing":1. Objects that are not used.Analysi

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Test your Java basic test questions: This is a few interview questions I designed. The requirement is that there should be as few questions as possible and they can be completed within five minutes, but it can basically reflect th

The interview questions for Python engineers are related to the basic Python syntax. I hope that this article will help you smoothly pass the Python interview, and you will be welcomed to read another article on Python Web. 1. What is the role of the pass statement in Python?The pass statement does not do anything. Gen

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

and data. Data access can only be performed through the defined interface. Object-oriented computing begins with the basic concept that the real world can be depicted as a series of completely autonomous and encapsulated objects that access other objects through a protected interface.4. Polymorphism:Polymorphism allows different types of objects to respond to the same message. Polymorphism includes parameterized polymorphism and inclusion polymorphis

Continuing with our interview series, we have provided 10 questions in this article. These questions or questions in future articles may not be asked during the interview. However, through these articles, we present an interactive learning platform, which will certainly be o

taking over the pen exam, the first step is to calm down, the second step is to browse all the questions, and the third step is to answer questions ~ When answering a question, you must answer the question quickly first. You may not have to say more about the multiple-choice question. Based on your understanding, I will give you a rough explanation of how many points you will receive. Programming is actual

(throughput) collector? The throughput collector uses a parallel version of the new generation garbage collector, which is used for medium-sized and large-scale data applications. The serial collector is sufficient for most small applications, which require about 100M of memory on modern processors. 41. In Java, when can objects be garbage collected? This object can be recycled when the object becomes inaccessible to applications that currently use t

Java basic questions (JVM), java basic questions jvm 1. What is a Java Virtual Machine? Why is Java called a platform-independent programmin

The system has organized a bit of questions about Java, including Basic, Javaweb, frame, database, multi-threaded, concurrent articles, algorithms and so on, updated in succession. Other aspects such as the front end and so on the face of the questions are also in the collation, there will be.Note: At the end of the ar