Document type changes:
C language java source code filename.cfilename.java compile FILENAME.EXEFILENAME.CLASS
For the most common programming language, this compiled form is usually machine code. For Java, the form is slightly different, called Java Bytecode. Whether you run on what operating system platform, this bytecode is the same. This consistency is an important advantage of the Java program. In Java, all bytecode files must be complicated with .class. Two basic ways to compile and run the Java program: Integrated Development Environment (Ide) and command lines. The compilation and running method of the command line has been exposed, which is two commands in Javac and Java.
Javac HelloWorld.java run Java HelloWorld
