CHALLENGE

$3\mathrm{.}5\mathrm{.}2$: Basic polymorphism.

Write the printltem$()$ method for the base class. Sample output for below program:

Last name: Smith

First and last name: Bill Jones

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$546390\mathrm{.}1983010\mathrm{.}93zqy7$

public class BaseItem $\{$

protected String lastName;

public void setLastName$($String providedName$)\{$

lastName $=$ providedName;

$\}$

$//$ FIXME: Define printItem$()$ method

$\}$

$\frac{\frac{?}{?}}{?}=====$ end $=====$

$//=====$ Code from file DerivedItem. java $=====$

public class DerivedItem extends BaseItem $\{$

private string firstName;

nublic void setFirstName$($String nrovidedName$)$ &