Important JDK directory structure

\ Bin directory contains the Java development tools, including Java compiler javac.exe, Java interpreter java.exe and so on;

• javac: Java compiler for compiling Java programs into bytecode
• java: Java interpreter, the Java program execution have been converted into bytecode
• jdb: Java Debugger, used to debug Java programs
• javap: decompile class file will revert back to methods and variables
• javadoc: documentation generator, create an HTML file

 

\ Lib directory is a Java development libraries;

\ Jre directory under the Java runtime environment, including Java virtual machine, class libraries run;