java - Generics and inheritance -


given situation:

class school  {     public void print(){} }  class grade extends school{}  class student extends school{}

what difference between this

public <e extends school> void somemethod(e someobj)  {     //now can pass object extends school      //and have access methods in school     someobj.print();  }

and this?

public void somemethod(school someobj) {     someobj.print(); }

the obvious difference 1 generic , other not.

and other know generic 1 can capture actual type of argument. of course doesn't make difference in case. imagine if wanted return type exact type of argument, come picture.


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