How do you create a jar file on Windows CLI?

1. Start Command Prompt.
2. Navigate to the folder that holds your class files:
   C:\>cd \mywork

3. Set path to include JDK’s bin.  For example:
   C:\mywork> path c:\Program Files\Java\jdk1.7.0_25\bin;%path%

4. Compile your class(es):
   C:\mywork> javac *.java

5. Create a manifest file and your jar file:
   C:\mywork> echo Main-Class: Craps >manifest.txt
   C:\mywork> jar cvfm Craps.jar manifest.txt *.class
  
   or
  
   C:\mywork> jar cvfe Craps.jar Craps *.class

6. Test your jar:
   C:\mywork> Craps.jar

   or

   C:\mywork> java -jar Craps.jar

How do you find out files with size more than 1GB in command prompt?

:: 1 GB = 1073741824 KB

forfiles /P E:\Movies\Hollywood\ /M *.* /S /C "cmd /c if @fsize gtr 1073741824 echo @path @fsize @fdate @ftime"