The document discusses setting the path for Java tools like javac and java. It explains that the path needs to be set if Java files are saved outside the JDK/bin folder, but not if they are inside. It provides two ways to set the path: temporarily each time the command prompt opens, or permanently by editing the system environment variables so the path is always available without resetting.

1. SET PATH
The path is required to be set for using tools such as javac,java etc.
If you are saving the java sourcefile inside the jdk/bin directory,path is not
required to be set because all the tools will be available in the current directory.
But If you are having your java file outside the jdk/bin folder,it is necessary to set
path of JDK.
There are 2 ways:
1.Temporary: To set the path temporarly ,the path is set each time when command
prompt is reopens by providing the directory address
set path=C:Program FilesJavajdk1.8.0_111bin
After this to chek the path is set or not you can simply check it by typing javac.

2. 2.Permanent: We can set path permanently and its all done,we don’tneed to set
path again and again i.e. any user can save his/her file in any directory and access
it through command prompt by simply moving into that directory.
Procedure:
Control PanelSystem and SecuritySystem Advance system
settingsEnvironment Variables…System variables path(click to set)
C:Program FilesJavajdk1.8.0_111bin

3. MATRIX ADDITION