Question

In c++

Write a program that contains a class called Player.
This class should contain two member variables: name, score.

Here are the specifications:
You should write get/set methods for all member variables.
You should write a default constructor initializes the member variables to appropriate default values.

Create an instance of Player in main.
You should set the values on the instance and then print them out on the console.

In Main

Declare a variable that can hold a dynamcially allocated array of Player.

Write code that will ask the user how big of an array of player that they want to create.
Once you get that input data create an array of that size.

Next write code that asks the user to enter data for every element of the array. Hint: Need a loop for this.

Modify the program

so that it will read in the Player data from a data file instead of standard input.
Ask the user to enter a filename and then read the data from that filename.
You will have to dynamically allocate an array based on the number of players indicated in the file.

File Format

#OfPlayers
PlayerName PlayerScore
…
PlayerName PlayerScore

Example File

2
Derek 100
Alex 90

Answer 1

#include <iostream>

using namespace std;

// Creating player class
class Player
{
private:
// Declaring variables
string name;
int score;

public:
Player();
// Function declarations
string getName();
void setName(string name);
int getScore();
void setScore(int score);
};

// Zero argumented Constructor
Player::Player()
{
this->name = "";
this->score = 0;
}

// Function Implementations
string Player::getName()
{
return name;
}
void Player::setName(string name)
{
this->name = name;
}
int Player::getScore()
{
return score;
}
void Player::setScore(int score)
{
this->score = score;
}
int main()
{
// Declaring variables
string name;
int score, size;

// Getting the Size of an array
cout << "Enter the Size of an array :";
cin >> size;

// Creating Player array dynamically based on size
Player* arr = new Player[size];

/* getting the values entered by the user
* and populating those into an array
*/
for (int i = 0; i < size; i++)
{
// getting the inputs entered by the user
cout << "Enter the name of Player#" << i + 1 << ":";
cin >> name;
arr[i].setName(name);
cout << "Enter the Score :";
cin >> score;
arr[i].setScore(score);
}

// Displaying the output
cout << "\nPlayer Name\tScore" << endl;
cout << "-----------\t-----" << endl;
for (int i = 0; i < size; i++)
{
cout << arr[i].getName() << "\t\t" << arr[i].getScore() << endl;
}

return 0;
}

___________________

Output:

__________________

Read data from File

playersInfo.txt (Save this file under D Drive.Then the path of the file pointing to it is D:\\playersInfo.txt)

2
Derek 100
Alex 90
_____________________

Program:

#include <fstream>
#include <iostream>
#include <iomanip>

using namespace std;

// Creating player class
class Player
{
private:
// Declaring variables
string name;
int score;

public:
Player();
// Function declarations
string getName();
void setName(string name);
int getScore();
void setScore(int score);
};

// Zero argumented Constructor
Player::Player()
{
this->name = "";
this->score = 0;
}

// Function Implementations
string Player::getName()
{
return name;
}
void Player::setName(string name)
{
this->name = name;
}
int Player::getScore()
{
return score;
}
void Player::setScore(int score)
{
this->score = score;
}
int main()
{
   //defines an input stream for the data file  
ifstream dataIn;
  
  
// Declaring variables
string name;
int score, size;
string filename;

//Getting the name of the file
cout<<"Enter the filename :";
cin>>filename;

//Opening the input file
dataIn.open(filename.c_str());
if(dataIn.fail())
{
   cout<<"** File not found **"<<endl;
   return 1;
}
else
{
   dataIn>>size;
  
// Creating Player array dynamically based on size
Player* arr = new Player[size];

/* getting the values from file
* and populating those into an array
*/
for (int i = 0; i < size; i++)
{
// getting the inputs from file
dataIn>>name>>score;
arr[i].setName(name);
arr[i].setScore(score);
}

// Displaying the output
cout << "\nPlayer Name\tScore" << endl;
cout << "-----------\t-----" << endl;
for (int i = 0; i < size; i++)
{
cout << arr[i].getName() << "\t\t" << arr[i].getScore() << endl;
}
dataIn.close();
  
}

return 0;
}

_________________________

Output:

CProgram Files (x86)\Dev-Cpp MinGW64vbin\ReadFilePlayerinfoAndCreatePlay Enter the filename DaNplayersInfo.txt Player Name Derek Score 100 90 Alex Process exited after 14.78 seconds with return value 0 Press any key to continue - -

_______________Thank You