Use the previous blog's example.
To create a jar file form the classes folder:
jar -cf SayHelloTest.jar SayHelloTest.class com
To use:
java -classpath ./SayHelloTest.jar SayHelloTest
The dot (.) refers to the present folder AFTER uncompressed.
You need to refer to the . folder because that is where the
main class is found. The main class should not be jarred in
a subfolder.
Also the jar name should be the same as the main class name.
If you have only one folde containing all your classes:
SayHello.class
SayHelloTest.class
Then enter the folder, and do:
jar -cf SayHelloTest.jar *.class
The jar file SayHelloTest.jar will be created in the same folder.
You can copy it anywhere and then run it as follows:
jar -classpath ./SayHelloTest.jar SayHelloTest
or
jar -cp ./SayHelloTest.jar SayHelloTest
The . refers to the classpath after uncompression.
The SayHelloTest.jar that comes after the . refers to the jar file that contains
the classpath for the dot (.)
