java interview questions pdf

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

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

Echo is a language structure and has no return value. The print function is basically the same as echo. The difference is that print is a function and has a return value. print_r is a recursive print, which is used to output the PHP interview questions and answer 1 of the array object. 1. use PHP to print the previous day in the format of 22:21:21 // Echo date ('Y-m-d H: I: S', time ()-60*60*24Echo date ("

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

Web Service Interview Questions and answers What is a Web service? Define people and companies have debated the exact definition of Web Services. at a minimum, however, a Web Service is any piece of software that makes itself available over the Internet and uses a standardized XML messaging system.XML is used to encode all communications to a web service. for example, a client invokes a web service by sen

). 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

-9fa4ae06b28a.html Part 2: Spring, hibernate, and struts interview questions 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. The code for JDBC database access is en

Introduction: This is a PHP interview I have encountered. Here I will record the details page, introducing PHP, related knowledge, skills, experience, and some PHP source code. Class = 'pingjiaf' frameborder = '0' src = 'HTTP: // biancheng.dnbc?info/pingjia.php? Id = 337763 'rolling = 'no'> Continuous updates. If you have good questions and want to share them or have better explanations or methods, please

Sp. Net interview questions (To original address http://blog.sina.com.cn/s/blog_524c848901009e7b.html ~ Type = v5_one label = rela_nextarticle author Li Yang's blog http://blog.sina.com.cn/liiyang) 1. Briefly describe the access permissions of private, protected, public, and internal modifiers. A. Private: Private Members can be accessed within the class. Protected: protects members, which can be accesse

ASP and net interview questions 1. Briefly describe the access permissions of private, protected, public, and internal modifiers.A. Private: Private Members can be accessed within the class.Protected: protects members, which can be accessed within the class and in the inheritance class.Public: A Public member. It is completely public and has no access restrictions.Internal: accessible within the same name

the application, so hibernate level two caches are Concurrency problems are possible, so an appropriate concurrency access policy is required that provides the transaction isolation level for cached data. The second-level cache is optional and is a configurable plug-in, which, by default, is not enabled by Sessionfactory.When hibernate accesses the data object according to the ID, it is first checked from the session level cache, and if the level two cache is configured, then it is checked from

This article briefly introduces the interview questions for jsp programmers. For more information, see. JSP Question 1. What built-in objects does jsp have? What are their roles? A: JSP has the following nine basic built-in components (which can correspond to the six internal components of ASP ): Request client request, which contains parameters from the GET/POST request Response returned from the response

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