latest java interview questions

which is the frequently asked interview questions for Java Engineers?Vivek Vermani, www.buggybread.com |Programme ... (more) 265 upvotes by Ridox Liu, Shivani Sahni Vermani, Viet Thang, (more) Basics of JavaFor a Core Java Developer, Questions around following topics should

Interview Questions:. Net remoting 1. What's a Windows Process? It's an application that's running and had been allocated memory. 2. What's typical about a Windows Process in regards to memory allocation? Each process is allocated its own block of available Ram space, no process can access another process 'Code or data. if the process crashes, it dies alone without taking the entire OS or a bunch of

= "Aaaabbbccccddfgh"; var obj = {};for (var i=0;i10, write a function, clear the string before and after the space. (compatible with all browsers)function Trim (str) {if (str typeof str = = = = = = "string") {return str.replace (/(^\s*) | ( \s*) $/g, ""); Remove front and back blank characters}}other1. What is the process of a complete HTTP transaction? Basic Flow:A. Domain Name resolutionB. 3-time handshake to initiate TCPC. Initiating an HTTP request after establishing a TCP connectionD. ser

process is more standardized, the amount of manual encoding is reduced, and the encoding efficiency is improved. At the same time, when data is updated, sometimes the component is not required, but it also needs to be re-drawn, which affects the efficiency. Generally, they are used only when building complex projects with multiple interactions and data streams. What are the disadvantages of redux? The data required by a component must be transmitted by the parent component, but cannot be dire

Reprinted ETL architect interview questions 1. What is a logical data mapping and what does it mean to the ETL team? What is Logical Data ing? What role does it play on the ETL project team? A: Logical Data Map) describes the data definition of the source system, the model of the target data warehouse, and instructions on operations and processing methods to convert the data of the source system to the data

Spring, hibernate, Struts interview questions from: http://shwenwen.itpub.net/post/34911/486887 How does hibernate work and why?Principle:1. Read and parse the configuration file2. Read and parse the ing information and create sessionfactory3. Open sesssion4. Create transaction Transation5. Persistent operations6. Submit the transaction7. Disable session8. Disable sesstionfactory Why:1. For JDBC access

Java provides and supports creating abstract classes and interfaces. Their implementations share the following things: All methods in the interface are implicitly abstract. Abstract classes can contain both abstract and non-abstract methods. Class can implement many interfaces, but can inherit only one abstract class Class to implement an interface, it must implement all methods declared by the interface. However, classes do not implement all

First Interview Questions (Java direction, China Rural Credit Cooperative) 1. What are the basic types of Java? Byte, short, Int, long, float, double, Char, and Boolean. 2. Write a common design pattern? Http://blog.csdn.net/xuqianghit/archive/2010/07/24/5761816.aspx 3. Explain the polymorphism in

security.Even so far, some people don't even know the basic semantics of SQL syntax.String sql = "SELECT * from Tb_name where name= '" +varname+ "' and passwd= '" +varpasswd+ "'";If we pass [' or ' 1 ' = ' 1] in as varpasswd. User name feel free to see what will become?SELECT * from tb_name = ' random ' and passwd = ' or ' 1 ' = ' 1 ';Because ' 1 ' = ' 1 ' is sure to be true, so you can pass any validation. What's more:Put [';d rop table tb_name;] Incoming in as VARPASSWD:SELECT * from tb_name

Last Updated: 2012: 05: 31Watch the latest IOS interview questions collection, please stay tuned to this blog: http://blog.csdn.net/iukey/article/details/7590557 1. Is object-C inherited? If no, what should I replace it? No, protocol. 2. Is there a private Method for Object-C? What about private variables? No, yes. 3. What is the difference between # im

. Synchronize the data between the main library and the library, and then repeat the action again13. Use a single command to turn off all services except SSHD, Crond, network, Rsyslog services (no power-on automatic)Method One:[[Email protected]~]# for name in ' Chkconfig–list|grep 3:on|awk ' {print '} ' |grep-ev "sshd|crond|rsyslog|network" ';d och Kconfig $name Off;done[Email protected]~]# chkconfig–list|grep 3:onCrond 0:off 1:off 2:on 3:on 4:on 5:on 6:offNetwork 0:off 1:off 2:on 3:on 4:on 5:o

strongly recommend that you read the locks carefully before you go to a multithreaded interview, as it is currently heavily used to build the client cache and transaction connectivity space for the electronic trading final. 3 The difference between the wait and sleep methods in Java? Java thread interview

). Loue: A thread can generate a loue object to manage the Message Queue (Message Queue) in this thread ). Handler: You can construct a Handler object to communicate with logoff so as to push new messages to the Message Queue or receive messages sent by logoff from the Message Queue. Message Queue: used to store messages placed by threads. Thread: the UI thread is usually the main thread, and a Message Queue is created for the Android Startup Program. 8. Let's talk about the principles of

without digital certificates.(2) the digital certificate used by the android package can be self-Signed and does not require signature authentication by an authoritative Digital Certificate Authority.(3) To officially release an Android app, you must use a digital certificate generated by a suitable private key to sign the app, rather than using the debugging certificate generated by the ADT plug-in or ant tool for release.(4) digital certificates are valid. Android only checks the validity per

on another thread's message, and waits until the message arrives when it does not get another thread's message.Thread mutex refers to the exclusive nature of the shared process system resources when each individual thread accesses it. When there are several threads that want to use a shared resource, at most one thread is allowed to use at most, and other threads that want to use that resource must wait until the resource is freed by the resource. Thread mutexes can be seen as a special kind of

reflection? This is the need to setaccessible () method to suppress Java access to the check, at that time felt that the front of the problem was asked the confused, the brain is blank. The rest is not very clear, the overall interview or asked a lot of questions, most of me can be very good answer up, this is to let me feel the most depressed an

I recently saw a blog post posted by Lao Zhao, "questions I asked during the interview with. Net/C # programmers". I tried to answer this question and I forgot to add it: What is. Net? What is CLI? What is CLR? What is Il? What is JIT and how does it work? What is GC? How does GC work? What is. net Dot Net is a complete set of platforms proposed by Microsoft in 2000, including the underlying operating sy