Question

It’s almost baseball season in Spokane (go Indians!), and the major league season is well underway. You are writing an application to manage players on a baseball team (such as the Mariners). For a team, you’ll need to track the team’s name and its players.

Define a class called BaseballPlayer and put this in a class definition file called baseballplayer.h.

· Define an enum for positions in Baseball:

enum Position { Pitcher=1, Catcher, First, Second, Third, Shortstop, LeftField, CenterField, RightField, DesignatedHitter };

· The class has the following public methods (behaviors) implemented in a file called baseballplayer.cpp:

BaseballPlayer(); //Come up with a default player

BaseballPlayer(string name, Position pos); //Initialize a player

string GetName(); //Get the player’s name

Position GetPos(); //Get the player’s position

· Think about what additional private properties the BaseballPlayer class needs to have in order to correctly implement the above behaviors.

· The default player could have any name you want, and play whatever position you choose. In my code, the player was named “Who”, and he played first base

Also define a class called BaseballTeam, and put this class definition in baseballteam.h.

· The class has the following public methods (behaviors) implemented in a file called baseballteam.cpp:

BaseballTeam(string name);

int GetPlayerCount(); //How many players are on the team?

void AddPlayer(BaseballPlayer& player); //Add a player to the team

BaseballPlayer& GetPlayerWithName(string name); //Find a player with a name. If that player doesn’t exist, return the default player

int CountPlayersAtPos(Position pos); //How many players play the given position?

BaseballPlayer& GetPlayerAtPos(Position pos); //Find a player at a position. If that playerdoesn’t exist, return the default player

· By default player, we mean return the player that is created by the default BaseballPlayer constructor

· Think about what additional private properties the BaseballPlayer and BaseballTeam classes needs to have in order to correctly implement the above behaviors.

Once your classes are designed and implemented, test it with the following program:

#include <iostream>

#include <string>

#include "baseballplayer.h"

#include "baseballteam.h"

int main() {

BaseballPlayer players[] = {

BaseballPlayer("Kyle Seager", Third), BaseballPlayer("Daniel Vogelbach", DesignatedHitter),

BaseballPlayer("Mitch Haniger", RightField), BaseballPlayer("Mallex Smith", CenterField),

BaseballPlayer("Shed Long", Second), BaseballPlayer("Dee Gordon", Second),

BaseballPlayer("Omar Narvaez", Catcher), BaseballPlayer("Domingo Santana", LeftField),

BaseballPlayer("Felix Hernandez", Pitcher), BaseballPlayer("Marco Gonzalez", Pitcher),

BaseballPlayer("Justice Sheffield", Pitcher), BaseballPlayer("Mike Leake", Pitcher)

};

BaseballTeam team("Seattle Mariners");

int count = sizeof(players)/sizeof(players[0]);

for (int i=0; i<count; i++)

team.AddPlayer(players[i]);

int errors = 0;

if (team.GetPlayerCount() != count) {

cout << "Playercount Failed" << endl;

errors++;

}

//Make sure we can find an existing player

BaseballPlayer bp = team.GetPlayerWithName("Shed Long");

if (bp.GetName() != "Shed Long") {

cout << "GetPlayerWithName failed: " << bp.GetName() << endl;

errors++;

}

BaseballPlayer defaultPlayer;

//This player does not exist, so we should get the default BaseballPlayer

bp = team.GetPlayerWithName("Does Not Exist");

if (bp.GetName() != defaultPlayer.GetName()) {

cout << "GetPlayerWithName with wrong name failed: " << bp.GetName() << endl;

errors++;

}

if (team.CountPlayersAtPos(Pitcher) != 4) {

cout << "CountPlayersAtPos failed: " << team.CountPlayersAtPos(Pitcher) << endl;

errors++;

}

//Make sure we can find an existing player

bp = team.GetPlayerAtPos(Catcher);

if (bp.GetName() != "Omar Narvaez" && bp.GetPos() != Catcher) {

cout << "GetPlayerAtPos failed: " << bp.GetName() << endl;

errors++;

}

//This player does not exist, so we should get the default BaseballPlayer

bp = team.GetPlayerAtPos(Shortstop);

if (bp.GetName() != defaultPlayer.GetName()) {

cout << "GetPlayerAtPosition with invalid position failed: " << bp.GetName() << endl;

errors++;

}

if (errors == 0) {

cout << "Tests passed!\n";

}

}

Answer 1

here is code :

baseball.cpp (main function as given just have to remove #include "baseballplayer.h" because i already added it in baseballteam.h file)

#include <iostream>
#include <string>
#include "baseballteam.h"

int main() {
BaseballPlayer players[] = {
   BaseballPlayer("Kyle Seager", Third), BaseballPlayer("Daniel Vogelbach", DesignatedHitter),
   BaseballPlayer("Mitch Haniger", RightField), BaseballPlayer("Mallex Smith", CenterField),
   BaseballPlayer("Shed Long", Second), BaseballPlayer("Dee Gordon", Second),
   BaseballPlayer("Omar Narvaez", Catcher), BaseballPlayer("Domingo Santana", LeftField),
   BaseballPlayer("Felix Hernandez", Pitcher), BaseballPlayer("Marco Gonzalez", Pitcher),
   BaseballPlayer("Justice Sheffield", Pitcher), BaseballPlayer("Mike Leake", Pitcher)
};

BaseballTeam team("Seattle Mariners");

int count = sizeof(players)/sizeof(players[0]);

for (int i=0; i<count; i++){
   team.AddPlayer(players[i]);
}

int errors = 0;
if (team.GetPlayerCount() != count) {
   cout << "Playercount Failed" << endl;
   errors++;
}

//Make sure we can find an existing player

BaseballPlayer bp = team.GetPlayerWithName("Shed Long");

if (bp.GetName() != "Shed Long") {
   cout << "GetPlayerWithName failed: " << bp.GetName() << endl;
   errors++;
}

BaseballPlayer defaultPlayer;

//This player does not exist, so we should get the default BaseballPlayer

bp = team.GetPlayerWithName("Does Not Exist");

if (bp.GetName() != defaultPlayer.GetName()) {
   cout << "GetPlayerWithName with wrong name failed: " << bp.GetName() << endl;
   errors++;
}

if (team.CountPlayersAtPos(Pitcher) != 4) {
   cout << "CountPlayersAtPos failed: " << team.CountPlayersAtPos(Pitcher) << endl;
   errors++;
}

//Make sure we can find an existing player

bp = team.GetPlayerAtPos(Catcher);

if (bp.GetName() != "Omar Narvaez" && bp.GetPos() != Catcher) {
   cout << "GetPlayerAtPos failed: " << bp.GetName() << endl;
   errors++;
}

//This player does not exist, so we should get the default BaseballPlayer

bp = team.GetPlayerAtPos(Shortstop);

if (bp.GetName() != defaultPlayer.GetName()) {
   cout << "GetPlayerAtPosition with invalid position failed: " << bp.GetName() << endl;
   errors++;
}

if (errors == 0) {
   cout << "Tests passed!\n";
}
return 0;
}

code for baseballplayer.h :

#include <string>

using namespace std;

enum Position { Pitcher=1, Catcher, First, Second, Third, Shortstop, LeftField, CenterField, RightField, DesignatedHitter };

class BaseballPlayer{
   private:
       string name;
       Position pos;
   public:
       BaseballPlayer(); //Come up with a default player
       BaseballPlayer(string name, Position pos); //Initialize a player
       string GetName(); //Get the player’s name
       Position GetPos(); //Get the player’s position  
};
       

code for baseballplayer.cpp :

#include "baseballplayer.h"

BaseballPlayer::BaseballPlayer(){
   name = "Noname";
   pos = First;
}

BaseballPlayer::BaseballPlayer(string n,Position p){
   name = n;
   pos = p;
}

string BaseballPlayer::GetName(){
   return name;
}

Position BaseballPlayer::GetPos(){
   return pos;
}

code for baseballteam.h :

#include <vector>
#include <string>
#include "baseballplayer.h"

using namespace std;

class BaseballTeam{
   private:
       string name;
       int count;
       vector<BaseballPlayer> players;
  
   public:
       BaseballTeam(string name);
       int GetPlayerCount(); //How many players are on the team?
       void AddPlayer(BaseballPlayer& player); //Add a player to the team
       BaseballPlayer& GetPlayerWithName(string name); //Find a player with a name. If that player doesn’t exist, return the default player
       int CountPlayersAtPos(Position pos); //How many players play the given position?
       BaseballPlayer& GetPlayerAtPos(Position pos); //Find a player at a position. If that playerdoesn’t exist, return the default player
};

code for baseballteam.cpp :

#include "baseballteam.h"

BaseballTeam::BaseballTeam(string str){
   name = str;
   count = 0;
}

int BaseballTeam::GetPlayerCount(){
   return count;
}

void BaseballTeam::AddPlayer(BaseballPlayer & p){
   players.push_back(p);
   count++;
}

BaseballPlayer& BaseballTeam::GetPlayerWithName(string str){
   for(int i=0;i<players.size();i++){
       if(0 == (players.at(i).GetName().compare(str))){
           return players.at(i);
       }
   }
   BaseballPlayer *p = new BaseballPlayer();
   return *p;
}

int BaseballTeam::CountPlayersAtPos(Position pos){
   int c=0;
   for(int i=0;i<players.size();i++){
       if(players.at(i).GetPos() == pos){
           c++;
       }
   }
   return c;
}

BaseballPlayer& BaseballTeam::GetPlayerAtPos(Position pos){
   for(int i=0;i<players.size();i++){
       if(players.at(i).GetPos() == pos){
           return players.at(i);
       }
   }
   BaseballPlayer *p = new BaseballPlayer();
   return *p;
}