Class and Type

I use to say you should learn something new every day. The other day I learned about Type in Object Oriented theory. Type is the template for the  interfaces of an object as the Class is the template of an Object. The Class is a mold where you cast Objects, Type is a mold where you cast ?
On the downside of this new knowledge; I'm not sure how I should use this enlightenment but time will tell I suppose. On the upside Erlang doesn't seem so complicated anymore, and I appreciate JSP structured Cobol more now.

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