While looking at some open source project for Java, I find a statement "connectAsync::getConnection", I googled but could not find what's the purpose for :: operator?
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3http://stackoverflow.com/questions/20001427/double-colon-operator-in-java-8 – Ryan B. Aug 28 '16 at 01:45
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Please search Stack Overflow before posting. – Basil Bourque Aug 28 '16 at 03:24