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JSP enterprise interview questions (4)5-1. Briefly describe the relationship between Servlet and JSP.
JSP is implemented in another way. servlet is an earlier version of JSP. In JSP, it focuses more on the page performance, while in servlet, it focuses more on the implementation of business logic.
Therefore, JSP is preferred when the page display effect is complex. Or htmlCodeJSP can be selected when
What is the hidden content of this post after a PHP programmer's classic interview and a written examination question? 201712195421.rar (41.35KB, download times: 1) 2010-10-1322: 37 Upload download times: 1 Original Post address: phpjava.orgthread-25-1-1.html this article from: PJDN -- php amp; java Forum | analysis of classic interview and written examination
Before I resigned, I gave my company a set of interview questions. What do you think is difficult ??
Oracle Database assessment:
1. Write a jdbc connection to the database and add, delete, modify, and query data code (simply write it ).
Answer:
PublicstaticvoidMain (String [] args ){
//TODOAuto-generated method stub
Connection cn =Null;
CallableStatement cstmt =Null;
Try{
// Do not do this here, because th
Android interview questions
1.Which of the following statements about memory reclaim are correct? (B)
A,ProgramThe worker must create a thread to release the memory.
B,The memory reclaim program is responsible for releasing useless memory.
C,The memory reclaim program allows programmers to directly release the memory.
D,The memory reclaim program can release memory objects at a specified time.
2
discard other tasks after the D.looper, each Looper create a message queue and thread object, not a resource pool; so the answer is AC9. The following understanding of the Android Ndk is correct ( ABCD )A, the NDK is a collection of a series of toolsB, NDK provides a stable, limited functionality of the API header file declarationC, so that "java+c" the development of the way finally become a positive, officially supported the development of the wayD
maintainability and non-repetition of wheel-making. For example, all spring templates (JDBC,REST,JPA, and so on) have the following advantages: they are built in a consistent way, so you can skip these general steps to focus on more important business logic.
Spring MVC is not necessarily the best web framework. There are other, for example, Struts 2,wicket and JSF. That said, spring can also be well integrated with these frameworks (STRUTS,JSF, etc.).
XML files are too bloated, and this
, frequent new/delete is bound to cause memory space discontinuity, resulting in a large number of fragments, so that program efficiency is reduced. For the stack, there is no problem, because the stack is advanced out of the queue, they are so one by one correspondence, so that there will never be a memory block from the middle of the stack poppedAllocation method: The heap is dynamically allocated and there are no statically allocated heaps. Stacks are allocated in 2 ways: static allocation an
Q A location: http://space.cnblogs.com/q/20546/q A: I have asked more questions about the relationship: 5 [resolved issues] Browse: 52 times 00
Student table T1
Stu_id
Stu_name
1
Zhang San
2
Li Si
3
Wang Wu
Course list T2
Co_id
Co_name
1
Java
2
C #
3
C
4
C ++
5
Javascript
Lin
Summary of String-related Interview Questions
1. First, let's look at the oldest. Is String a basic data type?
A: No. Basic data types include byte, char, short, int, long, float, double, and boolean. These eight types are built-in types in Java, also called native types, string is not. It is a class.
2. String s1 = "abc"; String s2 = "abc"; System. out. println
briefly summarize below:
TCP multiplexing: TCP connection multiplexing is the reuse of HTTP requests from multiple clients to a single server-side TCP connection, while HTTP multiplexing is the processing of multiple HTTP requests by one client over a TCP connection. The former is a unique feature of the load balancer device, which is a new feature supported by the HTTP 1.1 protocol and is currently supported by most browsers.
Content caching: Caches the content that is often used,
Android interview questions
1. Whether the process of android dvm is the same concept as that of Linux:
A: dvm is a dalivk virtual machine. Every android application runs in its own process and has a dalivk Virtual Machine instance. Every dvm is a process in linux. Therefore, it can be considered the same concept.
2. What types of android animations are available? What are their characteristics and differen
Android interview questions
1. Which of the following statements about memory reclaim are correct? (B)A. the programmer must create a thread to release the memory.B. The memory reclaim program is responsible for releasing useless memory.C. The memory reclaim program allows programmers to directly release the memory.D. The memory reclaim program can release memory objects at the specified time.
2. The follow
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
Interview Diary--Alibaba Java interview
Ali's interview is the most stressful one, but also the most test of technology.Did not expect Ali's interview notice is now received, can be said to be belated love it.Interview The remote interv
).
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
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
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