what makes good java developer

unpacking, and the English language corresponds to unboxing, and the Chinese translation is unboxing.Before the Java SE5, to be boxed, you can use the following code:NewAutomatic unpacking and Automatic packingIn Java SE5, in order to reduce the developer's work, Java provides automatic unpacking and auto-boxing capabilities.Automatic Boxing: The basic data type

as Access Control, search, version control, and lock content.For a period of time, different CMS systems developed by various manufacturers have emerged on the market. These systems are built on their respective content warehouses.The problem arises. Each CMS developer provides their own APIs to access the content repository. This has plagued application developers because they need to learn the APIS provided by different developers and their code is

progressive, and sometimes it is not even implemented by outsiders.The platform-independent Java aims to compete with the "Locked User" windows and give people more choices, but what drives Java R D is a hardware company-what is the balance between hardware companies and Microsoft? Some may take IBM as an analogy-IBM

Java learning-What is Servlet and java learning servlet After learning the thirteen J2EE specifications, we just had a simple understanding of them. What we need to do next is to study them in depth. Among the thirteen specifications, JSP, Servlet, EJB, and JNDI are commonly used. Let's introduce Servlet today. 1.

declared by a volatile and a field value of type double, although not guaranteed to be atomic in its jmm, is allowed.As long as it does not violate this rule, the JVM does not care what thread the value of the data comes from, which makes the Java language in the design of parallel operations extremely simple for multi-threaded atomic design. The final program d

is more verbose than Python. Read a file in Java to write 10 lines of code, and only two lines in Python. This is a Python advantage, because novice programmers absolutely like to write very little code, the 2nd is about static variables, dynamic variables. My point is that for beginners, you need a strong type of language and a rigorous compiler to detect the code that makes two. In

where the Jndi SPI works. A service provider is basically a set of classes that implement various JNDI interfaces for a particular naming and directory service-much like the JDBC driver implements various JDBC interfaces for a particular data system. As an application developer, you do not need to worry about the Jndi SPI. Just make sure that you provide a service provider for each naming or directory service that you want to use.Summarize 1

From: http://blog.sina.com.cn/s/blog_56fd58ab0100mrl6.html In the distributed service framework, the most basic problem is how remote services communicate. In the Java field, there are many technologies that can implement remote communication, such: RMI, Mina, ESB, burlap, Hessian, soap, EJB, and JMS. What is the relationship between these terms? What is the pri

What should I do if my daughter-in-law wants to switch to java Development ?, Daughter-in-law java I am a java developer who has been working for five years. My daughter-in-law is a software implementation engineer who has been married for nearly a year. These days, she sud

. The American Scientist magazine used the book as the most important 12 physics of the 20th century, alongside Einstein's theory of relativity. Knuth is now devoting his life to the writing of this epic book. This is a book that Gartner has devoted his heart to writing. --peter Coulton 10, "The Principle of Compiling" (Dragon book)Recommended Number: 462 I was surprised that no one mentioned the Dragon book. (Perhaps it has been recommended, I do not see). I have never forgotten the cover o

For example, the weakness of PHP in terms of arithmetic is very disturbing. So if you choose a technical expert course, how to go? Reply content:Any language has limitations ~ ~ Use different languages to solve problems at different stages this is a qualified developer Language this thing to a certain level you are very clear about the advantages and disadvantages of language. Also know when to use what la

face test, the following is my personal arrangement of the interview questions:2.1 Integrated The difference between ArrayList and vectors The difference between HashMap and Hashtable The difference between list and map The elements in set cannot be duplicated, so what is the way to distinguish between duplicates or not? Are you using = = or equals ()? The difference between collection and collections Tell the Arraylist,l

upgraded or entirely new protocol. If your system runs a Java program and encounters a program that does not know how to handle it, it doesn't matter, Java can automatically download the function program you need. Four. Similarities and differences with C and C + + Java provides all the functionality of a powerful language, but with little ambiguity. C + + secur

complexity Sorting algorithms and their complexity Trees, Graphs Every Java Developer is expected to has Database knowledge so questions around following concepts can be askedDatabase DriversNormalization/denormalization GeneralizationIsolation LevelsTransaction ManagementSQL tuning/optimizationSQL queries-inner Outer Joins, Group by, havePrepared Statement and their benefit.Indices, viewsStor

http://www.codelast.com/?p=7248Reprint Please specify source: http://www.codelast.com/This article is my translation of this article: What is a PermGen leak? For readability, I enclose the original text here, where translation is interspersed. In addition, in order to prevent the original link in the future after the expiration of the text in the picture can no longer see the problem, I will also save the original image of the site on the server, I do

I am a beginner in PHP. I have bought a java manual and haven't started to read it yet. This statement has made me very excited. I really want to know the specific situation. I am a beginner in PHP. I have bought a java manual and haven't started to read it yet. This statement has made me very excited. I really want to know the specific situation. Reply: "Father, forgive them for they don't know

limit the amount Work that you do from within synchronized regions. When you are designing Mutable class, think about whether it shoshould do its own synchronization. In Modern multicore era, it is more important than ever not to synchronize exces- Sively. Synchronize your class internally only if there is a good reason to do so, And document your demo-clearly 4) prefer executors and tasks to threads Executorservice executor = executors. newsinglethreadexecutor (); Executor.exe cute (runnable

Oh, Java? Angels I'm too imaginative, are you? Is Java, correctly said it is an English word, and no Chinese translation, at least I did not know for more than 10 years. If you know the reading of the words, and the idle egg pain, you can tell me (personal number: jyl_king).Java specifically, is actually a computer language,