JAVA: Write the printItem() method for the base class. Sample output for below p
ID: 3762609 • Letter: J
Question
JAVA:
Write the printItem() method for the base class. Sample output for below program:
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// ===== Code from file BaseItem.java =====
public class BaseItem {
protected String lastName;
public void setLastName(String providedName) {
lastName = providedName;
return;
}
// 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;
return;
}
@Override
public void printItem() {
System.out.print("First and last name: ");
System.out.println(firstName + " " + lastName);
return;
}
}
// ===== 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 = 0;
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();
}
return;
}
}
// ===== end =====
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Explanation / Answer
// ===== Code from file BaseItem.java =====
public class BaseItem {
protected String lastName;
public void setLastName(String providedName) {
lastName = providedName;
return;
}
// FIXME: Define printItem() method
/* Your solution goes here */
public void printItem() {
// TODO Auto-generated method stub
System.out.println("Last name: "+lastName);
}
}
// ===== end =====
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