Home > DeveloperSection > Interviews > How many ways can an argument be passed to a subroutine and explain them?

Posted on    July-15-2011 12:27 AM

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James Smith

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Posted on    July-15-2011 12:00 AM

An argument can be passed in two ways. They are passing by value and passing by reference. Passing by value: This method copies the value of an argument into the formal parameter of the subroutine. Passing by reference: In this method, a reference to an argument (not the value of the argument) is passed to the parameter.

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