$8\mathrm{.}14\mathrm{.}5$: Rearrange the code of the Name class that makes use of the this variable.

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Some programmers like to use the this variable to refer to instance variables, or to method calls on the implicit parameter object. Rearrange the code of the Name class that makes use of the this variable. First list the instance variables. The toString method yields a string such as "Smith, John" or$,$ if no last name is given, "Fred".