How to add directory in the classpath to run java program?

[Curious George]

I have bunch of jar files which needs to be included in the classpath to run a java program. Instead of including them one by one, I want to include the whole directory so that all the jar files in that directory are in the path. I already tried to include directory and dir\* or dir\*.jar, but it didn't work. For example, if I have java -classpath "dir1\x.jar;dir1\x1.jar;dir1\x2.jar;dir2\y.jar " a.b.c.MainI tried java -classpath "dir1;dir2\y.jar" a.b.c.MainI also tried java -classpath "dir1\*;dir2\y.jar" a.b.c.Mainand I also tried java -classpath "dir1\*.jar;dir2\y.jar" a.b.c.Mainbut, none of them worked. Can someone suggest me on how to include directory (where my intention is to include all the jar files) in the classpath?