Learn Java Programming - Passing Variables to Methods and Constructors Tutorial

Published: 06 August 2015
on channel: Daniel Ross

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When we pass a variable as an argument to a method or constructor, we are utilizing a pass-by-value technique. If we invoke a method or a constructor that contains a parameter list in its signature, we must pass a corresponding list of arguments that match that signature. The argument list can consist of literals, primitive variables, or reference variables. It is important to understand that the values of the actual argument variables initialize newly created parameter variables. I'm going to say it again ... it is important to understand that the values of the actual argument variables initialize newly created parameter variables. With regards to passing reference variables into parameters, you may hear someone say that Java uses pass-by-reference, but that is incorrect. Java only supports pass-by-value.

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