c# - Is this a type of polymorphism in object-oriented programming? - 


static void main(string[] args)  {     string str = "abc";     str += "xyz";     console.writeline(str);  }

here += type of polymorphism?

this operator overloading, not polymorphism, in case string concatenation. can find more information on operator overloading @ location: msdn link operator overloading


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