Parameter: If a method needs to receive arguments, then the method call should pass some parameters. The parameter variable is assigned with the value of an argument when the method is called. Reference parameter: Reference parameter is one of the special parameter variable types that are used for two-way communication purposes. If an argument is passed to a reference parameter, it will not get the copy of the argument value. Instead, it acts as a reference for the argument passed to it. If any change or modifications is done to the reference parameter, then that change will be reflected to the argument it references. When an argument is passed to “ref” parameter, then the value of the argument must be set.

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Chapter 6.4, Problem 6.12CP

Program Plan Intro

Parameter:

If a method needs to receive arguments, then the method call should pass some parameters.

The parameter variable is assigned with the value of an argument when the method is called.

Reference parameter:

Reference parameter is one of the special parameter variable types that are used for two-way communication purposes.

If an argument is passed to a reference parameter, it will not get the copy of the argument value. Instead, it acts as a reference for the argument passed to it.

If any change or modifications is done to the reference parameter, then that change will be reflected to the argument it references.

When an argument is passed to “ref” parameter, then the value of the argument must be set.

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