Configuring the Software Development Kit
When you are writing and compiling Java programs for the first time, the most likely source for problems is not typos, syntax errors, or other programming mistakes.
Most errors result from a misconfigured Software Development Kit.
If you type java -version at a command line and get a Bad command or file name error or a similar error, it indicates that your system can't find the folder that contains java.exe, the Java interpreter.
Setting Up the PATH Command
The root folder of your Windows system should contain a file called AUTOEXEC.BAT. This file is used by MS-DOS to configure how the operating system and some command-line programs function.
AUTOEXEC.BAT is a text file you can edit with Windows Notepad. ...
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