cmd java relative path

I need to run a java class in cmd line. How would I run a 开发者_C百科java class without changing directories, but instead specify a relative path? I have tried the following, but to no avail:

java -cp ./lib/*; ./bin/javaclass

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you need to set classpath till the bin folder.

java -cp ./lib/*;./bin com.foo.MyJavaClass