当我使用 -cp 时 Java 无法找到或加载主 class

Question

I have a problem.
I try to run my java program with the library.
When I use

java com/myProg

it works.
But when I try to pass classpath it can't find or load main class

java -cp com/lib/lid.jar com/myProgram

error:

Error: Could not find or load main class myProgram

Caused by: java.lang.ClassNotFoundException: myProgram

Answer 1

Try specifying after the -cp option only the root of the working directory and don't include the package name there. If you're running the java command from the dir of /com 's location, -cp. com/myProgram -cp. com/myProgram will be enough,otherwise you'll need the fully qualified name after the classpath. Not sure of the necessity of the.jar file, you stated that first you ran only via java com/myProg .