Configuration of Java Environment variables

First,

The installation path of the JDK, where we choose to install it by default in the C:\Program files\java\jdk1.7.0_45\ directory.

Second, below,

Set Environment variables:

"1" "My Computer" right-click menu---> Properties---> Advanced---> Environment variables---> System variables---> New

Variable name: java_home
Variable Value: C:\Program files\java\jdk1.7.0_45\
Variable name: Calss_path
Variable value:.; %java_home%\lib\dt.jar;%java_home%\lib\tools.jar;

"2" Find the PATH variable name---> Edit add:

Variable name: PATH
Variable value:%java_home%\bin;%java_home%\jre\bin;

Third, then,

Verify that Java is successful at the Windows command prompt:

"1" win+r

"2" Run cmd, enter

"3" type Java-version result graph:

"4" type Java, result diagram:

"5" type Javac, result graph:

In the event of an accident:

One of the workarounds:

My Computer Right-click menu---> Properties---> Advanced---> Environment variables---> User variables---> Find path---> Edit

Variable name: Path
Variable value:%java_home%\bin;

Configuration of Java Environment variables