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Answer:
public void printAll(){ // member function petAll()
super.printAll(); // calls printAll() method of the superclass (base class) AnimalData using super keyword
System.out.print(", ID: " + idNum);} // prints the ID stored in the idNum data member of the PetData class
Explanation:
Here is the complete PetData class:
public class PetData extends AnimalData { //
private int idNum;
public void setID(int petID) {
idNum = petID; }
// FIXME: Add printAll() member function
/* Your solution goes here */
public void printAll(){
super.printAll();
System.out.print(", ID: " + idNum);} }
PetData class is a subclass which is inherited from the base class AnimalData.
This class has a private data member which is the variable idNum which is used to store the ID value.
It has a member function setID with parameter petID which is the idNum. This method basically acts as a mutator and sets the user ID.
This class has another method printAll() that uses super keyword to access the method printAll() of the base class which is AnimalData
super basically refers to the base class objects.
Here the super keyword is used with the method name of subclass PetData in order to eliminate the confusion between the method printAll() of AnimalData and PetData since both have the same method name.
In the main() method the use is prompted to enter values for userName, UserAge and UserID. Lets say user enters Fluffy as user name, 5 as user age and 4444 as userID. Then the statement userPet.printAll(); calls printAll() method of PetData class as userPet is the object of PetData class.
When this method is called, this method calls printAll() of AnimalData class which prints the Name and Age and printAll() of PetData class prints the ID. Hence the program gives the following output:
Name: Fluffy, Age: 5, ID: 4444
Answer:
Follows are the modified code in c++ language:
#include<iostream>//header file
#include<string>//header file
using namespace std;
int main()//main method
{
string name,address, MSG_YES, MSG_NO;//defining string variable
int item,quantity,size=6, i=0;//defining integer variable
double price;//defining double variable
int VALID_ITEM[]={106,108,307,405,457,688};//defining integer array and assign value
double VALID_ITEM_PRICE[]={0.59,0.99,4.50,15.99,17.50,39.00};//defining double array and assign value
bool foundIt=false;//defining bool variable
MSG_YES="Item available";//use string variable to assign value
MSG_NO = "Item not found"; //use string variable to assign value
cout<<"Input name: ";//print message
cin>>name;//input value in string variable
cout<<"Input Address: ";//print message
cin>>address;//input value in string variable
cout<<"Input Item: "<<endl;//print message
cin>>item;//input value in string variable
cout<<"Input Quantity: "<<endl;//print message
cin>>quantity;//input value in string variable
while(i <size)//defining while that checks i less then size
{
if (item ==VALID_ITEM[i]) //use if block to match item in double array
{
foundIt = true;//change bool variable value
price = VALID_ITEM_PRICE[i];//hold item price value in price variable
}
i++;//increment the value of i
}
if (foundIt == true)//use if to check bool variable value equal to true
{
cout<<MSG_YES<<endl;//print value
cout<<"Quantity "<<quantity<<" at "<<"Price "<<price<<"each"<<endl;//print value
cout<<"Total"<<quantity*price;//calculate the total value
}
else//else block
cout<<MSG_NO;//print message
}
Output:
please find the attached file.
Explanation:
In the above given C++ language modified code, four-string variable " name, address, MSG_YES, and MSG_NO", four integer variable "item, quantity, size, and i", and "integer and double" array is defined, that holds values.
In the string and integer variable "name, address, and item, quantity", we input value from the user-end and use the while loop, which uses the if block to check the "item and quantity" value from the user end and print its respective value.
