Installing Java JDK in Windows Vista thru Windows 10

• Testing Installation
• The Java JDK installation from Windows Vista thru Windows 10 is NOT properly done.
• Follow these instructions to test installation:
• start
• run
• cmd
• javac -version
• result:
• 'javac' is not recognized as an internal or external command, operable program or batch file.
• The reason for this error is that the path contents in Windows was not updated when the JDK was installed.
• Windows maintains a configuration file named path that tells windows which locations to look into to find commands we like to execute.
• Please follow these instructions to fix this problem in all Windows Versions from Windows Vista to the current version
• To find the location where javac.exe is located, follow these instructions
• dir \javac.exe /s
• This is the answer, if javac.exe was actually installled:
• Volume in drive C is OS
• Directory of C:\Program Files\Java\jdk-11\bin
•     10/02/2018 04:04 PM 20,840 javac.exe
• Now we know that javac.exe is installed at: C:\Program Files\Java\jdk-11\bin