best way to learn java programming

these languages can be used to get started: Scheme C Java Python Javascript So in contrast, what languages do I not recommend to get started? Shell PowerShell Awk Perl Php Basic Go In general, you should not use the so-called " scripting language " as a starting language, especially for scripting language tools that originate from early Unix systems. Although PowerShell has progresse

The NPC two students, in the University of Professional and computer grazing, but irrelevant programming. Now self-taught to complete the C language (feeling and can not do anything), and later with a semester time to learn the C + + grammar (console write), peacetime will also practice a lot of small gadgets, such as mathematical analysis, socket Network application server/client or something. After learni

From graduation to now also quite a long time, has been in the C # programming, but has long been engaged in business-related functions, technical aspects are not too strong, some things ambiguous grasp of the not firm, even the implementation of the way is a bit old, but it is necessary to learn again.Return, break, continue are often used in the process of busi

find a problem with the map, adjust the map so that the code and the map match each other.One last suggestion: Every programmer will be influenced by irrational fears when they start a big new project. In order to avoid this fear, they will stall time and end up doing nothing. I sometimes do that, everyone has this experience, the best way to avoid this situation is to make a list of what you want to do, one time to complete the same.Start doing it.

Easy way to learn Linux OS kernel source codeFor a lot of Linux enthusiasts are interested in the kernel is not easy to swallow, the purpose of this article is to introduce a way to interpret the Linux kernel source code, rather than explain the Linux complex kernel mechanism;A The file organization of the core source program:1. Linux core source programs are usu

easy to introduce problems.For half a bucket of water classmate, I want to say: let yourself, also let others, live not good?Concurrent programming: A lot of benefits, very important, but the concurrency code error prone, and error difficult to locate. To learn or to spend a lot of effort, need to know a great deal of knowledge, such as: process, Thread, synchronization, asynchronous, read-write locks and

learn servlet/jsp programming, but not to extrapolate, follow realm. So the learning of HTTP protocol is necessary. If you are familiar with the HTTP protocol, but also have a good foundation of Java programming, Learning servlet/jsp is simply easy, I learned to use less than a week servlet/jsp, and then began to use

)please use mysqli 's mysqi::multi_query () to add three user Songjianglu for one time$sqls ="insert INTO User1 (name,password,email,age) VALUES (' Song Jiang ', ' aaa ', ' [email protected] ', ';"; $sqls.="insert INTO User1 (name,password,email,age) VALUES (' Lu Junyi ', ' aaa ', ' [email protected] ', $);"; $sqls.="insert INTO User1 (name,password,email,age) VALUES (' Wu ', ' aaa ', ' [email protected] ', ', ');";//$sqls. = "UPDATE;";//$sqls. = "delete;";//DML and DQL$b= $mysqli->multi_query (

"editable text configuration" abbreviationFor example,/etc/mysql is the configuration file for MySQL/ect/apache2/is apache2 configuration fileIn the history of "var" is "variable", Chinese meaning "change", is now mainly used to store log,lock and other documents.For example,/var/mysql is the log used to store MySQL.Question 6: Where do users put their own data?When we run the program, it produces a lot of our own results, where do we put them? There is a "/home" directory, but you cannot put i

Exercise 32: Loops and ListsNow you should be able to write more interesting programs out. If you can keep up with it, you should have seen that combining "if statement" and "Boolean expression" can make the program do something intelligent.However, our program also needs to be able to do the repetitive things quickly. In this exercise we will use For-loop (for loop) to create and print a wide variety of lists. In the process of doing this, you will gradually understand how they are going. Now I

return function, try writing a few functions yourself to get them to return some values. You can put anything that can be placed on the right side as the return value of a function. The end of the script is a puzzle. I use the return value of a function as a parameter to another function. I link them together, just like I write math equations. It may be a bit hard to read, but you'll know the result if you run it. Next, you need to try to make the same function as the expression in the nor

51CTO Editor's note: This article is already a number of years "age" of the old article, but today it seems still classic. How to learn Java? This article can be said to be a beginner's guide to Programming, which is about how to learn the steps of Java Introduction, many al

being, it always comes when you understand.The results you should seeThe following is the result of a conversation with python after you have guessed the result yourself:$ pythonpython 2.5.1 (r251:54863, Feb 6, 19:02:12)[GCC 4.0.1 (Apple Inc. build 5465)] on DarwinType " Help "," copyright "," credits "or" license "for more information. True true2TrueBonus points Exercise Python also has many operators similar to! = , = = . Try to list as many of the equivalent operators in Python

There are lots of books about Linux, blogs. Most of them will be "rude" to plug a lot of commands to the reader, so much more. NET programmer to be deterred. They passed by without entering the door.So I envision a smoother way of learning, which is to introduce Linux backgrounds and motivations in plain language first when learning commands. Just as all the online games have to introduce the history of the game, and then introduce the game operation.

There are lots of books about Linux, blogs. Most of them will be "rude" to plug a lot of commands to the reader, so much more. NET programmer to be deterred. They passed by without entering the door.So I envision a smoother way of learning, which is to introduce Linux backgrounds and motivations in plain language first when learning commands. Just as all the online games have to introduce the history of the game, and then introduce the game operation.

of the "Python is the glue language, using Python to quickly generate a prototype of the program (and sometimes even the final interface of the program), and then to the special requirements of the part, with a more appropriateof the language Rewriting, than such as the Graphics rendering module in 3D games, performance requirements are particularly high, can be rewritten in C + +. "(3) share a very basic system of learning sites(4) w3cschool.cc (3) mentioned in the study site is very basic pe

fo = open ("./tmp/foo.txt","w+") Fo.write ("Python is a gerat language.\nyeah its great!! \ni am Zhang Yapeng, who is you?\n ") t_str = u' I am Zhang Yanpeng, what are you? ' Print (T_STR) Fo.write (T_STR) Fo.close () #read and Write FR = Open ("./tmp/foo1.txt","r+") FW = Open ("Foo_rw.txt","WB") Done = 0; LocalTime = Time.asctime (Time.localtime (Time.time ())) Print "Local Current time:", LocalTime Fw.write (localtime + "\ n") While not doing

feeling, learning design mode is very important. Related Knowledge points: C # oop c # Interface C # inherit C # polymorphism C # Encapsulation 2. Start learning (the second formula is used below) Examples of not wanting to use a calculator ~ Yes ~ Yes ~ Let's build blocks. I miss a game in kindergarten when I was a child ~ Component: Wood of various shapes Action: Pick up building blocks Create a console application ① Create a new wood class, the general term of wood, to basically determine

drivers, embedded software, high-performance servers and client applications and entertainment software, such as video games. C language tutorials: Http://www.tudou.com/listplay/JFN2B9ZhN8M/gyi6pJDSAgw.html C ++ getting started: Http://lijun7662.blog.163.com/blog/static/12243245520099266935205/ 3. Java It can be used in fields, including enterprise applications and infrastructure, as well as Web applications and android mobile app development.

makes text, pictures and so more descriptive.ConclusionC is suitable for fast and small programs, but does not support object-oriented programming; C + + fully supports object-oriented, but is very complex; Visual Basic and Delphi are easy to learn, but not portable and patented; Java has a lot of neat features, but it's slow, and so on.When you can not start to