I finally began to give up the entry to the first week, and is only doing this to write notes in class, I really do not bother to take notes, so with this content are some of the subtotal, according to the content of school every day. (Write this time is now past week, I will be according to their memory recall recall)

day1：

Did not do any real practical content, or content to say little, is that the hardware detection, introduces us to learn about the process, from the first day to see each teacher is pretty serious passion, but also makes sense to want to come on the first day being.

Probably for this week it is the basis of language, difficult: cycling.

java oop is a popular programming language, derived from the sun's.
Features: oop (object-oriented), cross-platform,
Cross-platform explained: "Residents have different versions on different platforms, and then compiled into Java class files compiled permanent follow a run ."

javaSE，JavaEE，JavaMe
JavaS (Standard) E; basic language features, API, desktop development technologies (JavaFX, Swing, AWT)
JavaE (Enterprise) E: Web development, game servers
JavaME: Micro Edition ( I do not know what )

Development steps:
The first step : writing Java source code editor by
Step : compiled into class files
Step : Run the class file

When the computer can be clearly seen in the control window, enter txt file into Java files, a series of operations console, is compiled into a class .java file before you can run the code.

( In the current folder using shift + right you can see the console between; if not in the current directory to open the file, you need to go to the file directory, I remember like file directory with cd on it. )

When the code is wrong, it will pop up when prompted in txt file compiled into class files;
Compiled into class success;
Run successfully;

JDK installation and configuration

directory after installation of the JDK:
bin: executable files
javac: to compile source code into class files
java: class File Run

Configure the environment variables:
path; value is one or more directories (separated by semicolons), will find the path of the program from the value at the time of execution of the program using the command line
C: \ the Java \ jdk1.8.0_144 \ bin
the CLASSPATH: value is one or more directories or jar file, look for the class from the value classapth when the program is executed in a java class files
value:;. C: \ java \ jdk1.8.0_144 \ lib

The rest is configured jdk environment variable in the computer properties;