How to run a .class file that is part of a package from cmd?

Question

I keep getting errors when I make my .class part of a package and try to run it from cmd.

Here\'s the code that works after using jav

Answer 1

The syntax is:

java -classpath /path/to/package-folder .

So you may try: java com.HelloWorld which would expect com/HelloWorld.class file to be present as classpath by default points to the current directory (if not specified).

In case you're in different folder, try specifying classpath:

$ CLASSPATH=/path/to/package-folder/ java com.HelloWorld
Hello World!
$ java -cp /path/to/package-folder/ com.HelloWorld
Hello World!
$ cd /path/to/package-folder/ && java com.HelloWorld
Hello World!

For further explanation, check: How do I run Java .class files?