java - How can I represent this generic type -

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How to fix a normal type of part to represent the map to apply this one long and anything ?

Maps & lt; Long, & lt; T applied collection & lt; Long & gt; & Gt; & Gt; MOC;

so that I moc = new hashMap & lt; Long, set & lt; Long & gt; & Gt; ();

If I understand your question, then you 

 < Code> map & lt; Long, collection & lt; Long & gt; & Gt; Moc = new Hashmap & lt; & Gt; ();

You can set a set as 

  moc.put (long) 1, new hashaseet and jm> long & gt can add. ; ());

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