java j2ee interview questions

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J2EE Interview Questions and Answers Frequently Asked Questions

1. Difference between forward and redirect A: forward is the server that requests resources. The server directly accesses the URL of the target address, reads the response content of the URL, and sends the content to the browser, the browser does not know where the content sent by the server comes from, so its address bar is still the original address. Redirect means that the server sends a status code based on logic to tell the browser to request the address again. Generally, the browser will r

J2EE interview questions

1. J2EE related knowledge 1. Introduce the differences between J2EE, j2se, and j23. (1) J2EE (Java 2 Platform Enterprise Edition) is a system platform used to establish server applications, it is an open standard platform for developing, deploying, and managing multi-layer, web-based, server-centric, and component-base

Can you pass? J2EE interview questions (with answers)

), obtain the function value H (k), which is interpreted as the storage address of the node. HashMap is similar to Hashtable, but HashMap is non-synchronous (unsynchronizded) and can take null as the key code. 4. Difference between forward and redirect Forward: an internal transfer in servlet Redirect: redirection. There are two requests. The first attributs/parameters will be lost in 2nd requests. 5. What is a Web container? Implement the web Protocol application in the

J2EE interview questions

forward and redirect Forward: an internal transfer in ServletRedirect: redirection. There are two requests. The first attributs/parameters will be lost in 2nd requests. 5. What is a Web container? Implement the Web Protocol application in the J2EE specification. This Protocol defines the Web Program Runtime Environment, including concurrency, security, and lifecycle management.6. Explain the following J2EE

J2EE interview questions

forward and redirectForward: an internal transfer in ServletRedirect: redirection. There are two requests. The first attributs/parameters will be lost in 2nd requests. 5. What is a Web container?Implement the Web Protocol application in the J2EE specification. This Protocol defines the runtime environment of web programs, including concurrency, security, and lifecycle management. 6. Explain the following J2EE

J2EE interview questions (with answers)

forward and redirectForward: an internal transfer in ServletRedirect: redirection. There are two requests. The first attributs/parameters will be lost in 2nd requests. 5. What is a Web container?Implement the Web Protocol application in the J2EE specification. This Protocol defines the runtime environment of web programs, including concurrency, security, and lifecycle management. 6. Explain the following J2EE

Summary of Java back-end development interview questions of major companies, and java back-end interview questions

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 --- Java interview questions (1), java --- java interview questions

Java --- Java interview questions (1), java --- java interview questions 1. What is a Java

Java interview questions, Java interview questions

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

Summarize the Java Background Development interview questions and the java Background interview questions.

Summarize the Java Background Development interview questions and the java Background interview questions. Jing er has been summing up some interview

Summary of Java back-end development interview questions of major companies, and java back-end interview questions

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 fo

10 Java Interview Questions and Answers, java Interview Questions and answers

10 Java Interview Questions and Answers, java Interview Questions and answers 1. What is JVM? Why is Java A cross-platform programming language?Jav

Concise answers to several java interview questions, concise java interview questions

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

324 Java interview questions for IT Enterprises

Java Interview Questions Library recommendation Directory (?) [-] 324 Java interview questions for IT Enterprises Introduction 324 Java

One of the interview summaries: Java handles linked list questions during the interview and java handles them

= null;Child p1 = null;/****************************************** ************* Create constructor and create a circular linked list***************************************** *************/Public createline (int len ){This. len = len;For (int I = 1; I If (I = 1 ){Child p2 = new child (I );Head = p2;P1 = p2;} Else {Child p2 = new child (I );P1.next = p2;P1 = p2;}}P1.next = head; // put this sentence outside the for loop.// P1 = head; // question point --> no use of this sentence}/***************

The ultimate solution to Java/J2EE Chinese questions

The oldest solution is to use String bytecode conversion, which is inconvenient. We need to break the object encapsulation and perform bytecode conversion.Another method is to encode the J2EE container. If the J2EE application system leaves the container, garbled characters will occur, and the specified container configuration does not conform to the principles of J2EE

Interview Questions, java interview questions

Interview Questions, java interview questions 1. Use case when for subquery SELECT u.id user_id,u.username user_username,g.id group_id, CASE g.flag WHEN '0' THEN g.groupcode ELSE (SELECT t.fullname FROM tab_0009 t WHERE t.id = g.id) END AS group_groupnam

At the interview, when you have the right to ask questions, it's a good chance to reverse (excerpt from the Java Web Lightweight Development Interview tutorial)

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

15 top-level Java multi-thread Interview Questions and Answers, multi-thread questions and answers

15 top-level Java multi-thread Interview Questions and Answers, multi-thread questions and answers Multithreading and concurrency issues are an essential part of any Java interview. If you want to obtain information about any stoc

Java Developer interview questions, 3 years of working experience in Java Programmer interview

. JavaScript Common objects6, commonly used in JavaScript value assignment method, for radio button, check box, such as the value assignment method. (Baidu can, JavaScript common basis)7, jquery value Assignment Basic method.8. Get the value of the radio button, get the value of the check box, get the value of the drop-down list, go to the value of the check box, get the value of the radio button Group, text box, text field assignment.9, the Append of jquery and appendto difference.10, the CSS B

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