Javase Basic Review strategy "one"

As a software engineering major, Java development direction of the junior undergraduate students, it is necessary to put their own knowledge of the expertise to organize, a convenient to understand their own learning, and two to help just contact the language of children's shoes learning, I came from Henan University of Science and Technology, introduced the basic situation, For the next period of time, I would like to introduce you to this mysterious and very interesting language--java.

Speaking of computer programming language, let's briefly talk about this topic, the first programming language is assembler, but the assembly language is too complex, making it with the development of computer technology, gradually eliminated, this time appeared C language, a epoch-making significance of the programming language, C language is how powerful, I think we all know that after such a long period of technical updates, but the C language in computer programming is still the status of any language is difficult to shake. The latest computer programming language rankings in March 2015 show that the top 7 are divided into: C, JAVA, objective-c, C + +, C #, PHP, JavaScript. From the top of the line you can see, we learn the Java language ranked second, so we must be full of hope for the future, let us refuel it together.

Speaking of the above programming language to everyone to talk about Ha, we must be very interested in mobile Internet, the above ranking of the top seven of which three is related to certain internet, Java is our current very popular Android development language, Objective-c is the language of iOS development, C #可以用于win phone development. Therefore, the mobile Internet is interested in the children's shoes can be first a good grasp of the Java Foundation.

Said so much, the following began our topic, let me go into the Java Great sailing era ...

Java is a programming language developed by Sun, and later, when Sun was acquired by Oracle, and Java ushered in new opportunities for development, let's take a look at this high-level programming language. First for everyone to introduce, my summary of ideas, convenient for everyone to learn. Javase's review route is divided into: 1, environment configuration, Eclipse use, Helloword program writing, 2, basic grammar, 3, object-oriented design idea, 4, exception handling, 5, array learning, 6, Common class introduction, 7, container, 8, io;9, thread, 10, network; 11, System Summary.

Here's a look at the environment configuration, Eclipse usage, Helloword programming:

Java programming needs to configure some environment variables, I believe everyone in the hands of the Java tutorial on this part must give a detailed introduction, below I will briefly introduce this process, configure environment variables before we need to install the JDK for our machine, in order to facilitate everyone to download, to provide a website: HTTPS : The installation of//WWW.ORACLE.COM/JAVA/INDEX.HTML,JDK no longer repeat, the installation of a fool, by default installed in: C:\Program Files (x86) \java, I believe we can be done. Here's how our environment variables are configured:

1. JDK Environment configuration:

after the JDK is installed, click My Computer >>> Right-click, select Properties >>>

　　　　

>>> Click Advanced Settings >>>

>>> Select environment variables >>>

>>> in the System variables module, click New java_home>>>

the value of the >>> variable is:jdk 's installation directory to the bin directory

>>> then click New , add The value of the classpath>>> variable: The period of the English.

>>> then find the path object >>>

The value of the variable is : after the contents of the + English semicolon (; ) +JDK the installation directory to bin Catalogue

Now that the JAVA environment configuration is complete, test the configuration is correct, method:

Click win+r, enter the command line interface, enter the cmd command,

Click Enter after entering javac Click on the return, the following interface shows the configuration is complete.

Environment variable configuration success, the following is the installation of Eclipse download, we can search on Baidu, very easy to find, I will not repeat. The following is a brief introduction to the writing of Helloword:

Javase Basic Review strategy "one"