I need help writing a java code, described in the image below // ===== Code from file BaseItem.java ===== public class BaseItem { protected String lastName; public void setLastName(String providedName) { lastName = providedName; } // FIXME: Define printItem() method /* Your solution goes here */ } // ===== end ===== // ===== Code from file DerivedItem.java ===== public class DerivedItem extends BaseItem { private String firstName; public void setFirstName(String providedName) { firstName = providedName; } @Override public void printItem() { System.out.print("First and last name: "); System.out.println(firstName + " " + lastName); } } // ===== end ===== // ===== Code from file ItemInventory.java ===== import java.util.ArrayList; public class ItemInventory { public static void main(String[] args) { BaseItem baseItemPtr; DerivedItem derivedItemPtr; ArrayList itemList = new ArrayList(); int i; baseItemPtr = new BaseItem(); baseItemPtr.setLastName("Smith"); derivedItemPtr = new DerivedItem(); derivedItemPtr.setLastName("Jones"); derivedItemPtr.setFirstName("Bill"); itemList.add(baseItemPtr); itemList.add(derivedItemPtr); for (i = 0; i < itemList.size(); ++i) { itemList.get(i).printItem(); } } } // ===== end

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

I need help writing a java code, described in the image below

// ===== Code from file BaseItem.java =====
public class BaseItem {
protected String lastName;

public void setLastName(String providedName) {
lastName = providedName;
}

// FIXME: Define printItem() method

/* Your solution goes here */

}
// ===== end =====

// ===== Code from file DerivedItem.java =====
public class DerivedItem extends BaseItem {
private String firstName;

public void setFirstName(String providedName) {
firstName = providedName;
}

@Override
public void printItem() {
System.out.print("First and last name: ");
System.out.println(firstName + " " + lastName);
}
}
// ===== end =====

// ===== Code from file ItemInventory.java =====
import java.util.ArrayList;

public class ItemInventory {
public static void main(String[] args) {
BaseItem baseItemPtr;
DerivedItem derivedItemPtr;
ArrayList<BaseItem> itemList = new ArrayList<BaseItem>();
int i;

baseItemPtr = new BaseItem();
baseItemPtr.setLastName("Smith");

derivedItemPtr = new DerivedItem();
derivedItemPtr.setLastName("Jones");
derivedItemPtr.setFirstName("Bill");

itemList.add(baseItemPtr);
itemList.add(derivedItemPtr);

for (i = 0; i < itemList.size(); ++i) {
itemList.get(i).printItem();
}
}
}
// ===== end =====

Write the printItem() method for the base class. Sample output for below program:
Last name: Smith
First and last name: Bill Jones
Learn how our autograder works
468796.2927918.ஒலிமy7.
1 // ===== Code from file BaseItem.java ===RE
2 public class BaseItem {
3 protected string lastName;
4
5
6
7
8
9
10
11
public void setLastName (String providedName) {
lastName = providedName;
}
// FIXME: Define printItem() method
/* Your solution goes here */
12
13}
14 // ===== end =====
15
=====
16 // ===== Code from file Deriveditem.java
17 public class DerivedItem extends BaseItem {
▶

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