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Buckys C++ Programming Tutorials – 70 – Reviewing the Final Program
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34 responses to “Buckys C++ Programming Tutorials – 70 – Reviewing the Final Program”
-
here saved way more lines
#include <iostream>
#include <string>
#include <fstream>int getf () {
int ausw;std::cout << "1. Plain Itemsn2. Helpful itemsn3. Itemsn4. Quit Programn";
std::cin >> ausw;
return ausw;
}void showf(int ausw) {
ifstream objectFile("object.txt")
string name;
double val;switch(ausw) {
case 1: //Plain items
while (objectFile >> name >> val) {
if (val == 0) {
std::cout << "Name: " << name << ' Power: No Power' << std::endl;
} }
break;
case 2: //Positive items
while (objectFile >> name >> val) {
if (val > 0) {
std::cout << "Name: " << name << ' Power:' << val << std::endl;
} }
break;
case 3: //Negative items
while (objectFile >> name >> val) {
if (val < 0) {
std::cout << "Name: " << name << ' Power: ' << val << std::endl;
} }
break;
}
}int main() {
int ausw;ausw = getf();
while (ausw != 4) {
while (ausw > 0 and ausw < 4)
showf(ausw);
}
} -
#include <iostream>
#include<fstream>
using namespace std;
int getwhattheywant();
void displayitem(int x);
//main function
int main()
{
int whattheywant;
whattheywant=getwhattheywant();while(whattheywant!=4)
{
switch(whattheywant)
{
case 1:
displayitem(1);
break;
case 2:
displayitem(2);
break;
case 3:
displayitem(3);
break;
}
whattheywant=getwhattheywant();
}
}
int getwhattheywant(){
int choice;
cout<<"1-justplain"<<endl;
cout<<"2-helpfuliten"<<endl;
cout<<"3-harmfulitem"<<endl;
cout<<"4-quit"<<endl;
cin>>choice;
return choice;}
void displayitem(int x)
{
ifstream objectFile("jukebox.txt");
string name;
double power;
if(x==1)
{
while(objectFile>>name>>power)
{
if(power==0)
{
cout<<name<<":"<<power<<endl;
}
}
}
if(x==2)
{
while(objectFile>>name>>power)
{
if(power>0)
{
cout<<name<<":"<<power<<endl;
}
}
}
if(x==3)
{
while(objectFile>>name>>power)
{
if(power<0)
{
cout<<name<<":"<<power<<endl;
}
}
}}
-
The items with negative values aren't printing :<
-
which compiler u r using
-
hey Bucky how to delet a particular record that we want from this file?
-
Thanks Bucky,you're amazing,
Here's what I did:-
//Check this directory for readme.txt
#include<fstream>
#include<iostream>
#include<iomanip>
using namespace std;
//main function();
int getchoice();
void displayitems(int n);
int main(){
int choice;
choice=getchoice();
while(choice!=4){
if(choice>4){cout<<"enter from 1 to 4"<<endl;}
switch(choice){
case 1:
displayitems(1);
break;
case 2:
displayitems(2);
break;
case 3:
displayitems(3);
break;
}
choice=getchoice();
}
}
//getchoice() function
int getchoice(){
int option;
cout<<"1— just plain items"<<endl;
cout<<"2—helpful items"<<endl;
cout<<"3—harmful items"<<endl;
cout<<"4—quit"<<endl;
cin>>option;
return option;
}
//displayitems();
void displayitems(int x)
{
ifstream objfile("game.txt");
string obj;
double points;
while(objfile>>obj>>points){
if((x==1)&&(points==0)){cout<<obj<<setw(10)<<points<<endl;}
if((x==2)&&(points>0)){cout<<obj<<setw(10)<<points<<endl;}
if((x==3)&&(points<0)){cout<<obj<<setw(10)<<points<<endl;}
}
} -
Thanks you so much
-
soda is helpful item? really?
-
I'll take the meth and dirtyneedles over bucky's "teaching" any day. Way less harmful.
-
So where is the entropy of this tutorial given the previous two?
-
My Code:
#include <iostream>
#include <fstream>
#include <string>
using namespace std;// global variable : name;
string name;
int getWhatTheyWant ();
void displaysItem (int x);// main function
int main(){cout << "Enter your character name :" << endl;
cin >> name;
int whatTheyWant;
whatTheyWant = getWhatTheyWant();
while(whatTheyWant != 5){
displaysItem(whatTheyWant);
whatTheyWant = getWhatTheyWant();
}}
// getWhatTheyWant function
int getWhatTheyWant ()
{
int input;
cout << "" << endl;
cout << "1 —- Displays items with power 0" << endl;
cout << "2 —- Displays items with power > 0" << endl;
cout << "3 —- Displays items with power < 0" << endl;
cout << "4 —- Displays the whole list of items which will affect " << name << endl;
cout << "5 —- Quit" << endl;
cout << "" << endl;
cin >> input;
return input;
}// displaysItem function
void displaysItem (int x)
{
string id;
double power;
ifstream myFile("random.txt");while(myFile >> id >> power){
if (x==1 && power == 0){
cout << id << " " << power << endl;
}
if (x==2 && power > 0){
cout << id << " " << power << endl;
}
if(x == 3 && power < 0){
cout << id << " " << power << endl;
}
if(x==4){
cout << id << " " << power << endl;
}}
myFile.close();
} -
hi bucky, can i write object.txt file in this program itself instead of writing it separately, i tried it but it stuck up in a loop, can u tell me how to do it??
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You do not need the switch statement in the while loop. You could just pass in the user input right into the displayItems function right away.
Heres How:
while(user_input != 4){ //main loop to control whether the program stays on or turns off
displayItems(user_input); // all that is needed to pass in the user input into the function
if(user_input != 1 && user_input != 2 && user_input != 3){
cout << "Your input is invalid! Please enter a number between 1 and 4!" << endl;
}
user_input = getNum();
} -
I have problem ,I wrote the exact same code and it occurs that it doesn't even read from the file. I just get to enter the choice and I get the Menu constantly.
-
Why in main is written twice, at the beginning and at the end, "whatTheyWant=getWhatTheyWant ();"?
-
This is a little more effective (Change variable names)
int main()
{
int uInput;
uInput = objectOut();while (uInput != 4)
{
system("cls");
displayItems(uInput);
uInput = objectOut();
}
} -
thank you!! can you please explain how to modify the power values??
-
Could you make a video where you write to the file and read from it in the same program please?
-
Guys please tell me why i write the code as same as bucky did, but i come with different results?!!! :
-
Hello!
At the display part, my code stucks in infinite while loop. Can you help me?ifstream objj("game.txt");
string Name;
double value;if (x == 1) {
while (objj >> Name >> value) {
if (value > 0) {
//cout << "Useful Items= n" << endl;
cout << Name << ' ' << value << endl;}
}
…………….. -
Thank you!!!! I had a 3 hours class today and didn´t understand a single thing, I just watched your videos and is crystal clear! 😀
-
i messed up something but i dont know how to fix it ! i coeded excatly what is showed in the videos but the while loop kept running again not get to the end point ? how can i fix it ?
-
I wrote the exact program but when I enter the number the names are displayed but the loop makes it just going. what change should I make in the program so that it only loop through the file once ?
-
Should you prototype a function in a production software or put the function before the main function? The name 'prototype' gives me an impression that it is a temporary thing.
-
Switch statement seemed a bit excessive; how about this?
int main () {
int whatTheyWant;
do {
whatTheyWant = getWhatTheyWant();
displayItems(whatTheyWant);
} while(whatTheyWant != 4);
} -
You feel so happy on this tutorial…? I mean I onl felt you hapiness like 2 times on your tutorials (not counting the video with muahmuahm)
-
I wrote the program without any function and it works perfectly well
#include <iostream>
#include<fstream>
using namespace std;// Main Function
int main()
{
int RequiredItem;
string Name;
double Power;
do{cout<< "n1 – Plain Items" << endl;
cout<< "2 – Helpful Items" << endl;
cout<< "3 – Harmful Items" << endl;
cout<< "4 – Quit n" << endl;
cin >> RequiredItem;ifstream ObjectsFile ("Objects.txt");
switch(RequiredItem){
case 1:
while(ObjectsFile>> Name >> Power){
if (Power==0){
cout<< Name<< " " << Power << endl;
}
}
break;
case 2:
while(ObjectsFile>> Name >> Power){
if (Power>0){
cout<< Name<< " " << Power << endl;
}
}
break;
case 3:
while(ObjectsFile>> Name >> Power){
if (Power<0){
cout<< Name<< " " << Power << endl;
}
}break;
}
}while(RequiredItem !=4);
} -
which compiler is it ? notepad ++ ?? how to run c,c++ programs ?
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Bucky, congrats on the 1 million subscribers! 🙂
-
here is what i did:
#include <iostream>
#include <string>
#include <fstream>using namespace std;
int getWhatTheyWant();
void displayItem(int x);
//main function
int main(){int whatTheyWant;
whatTheyWant = getWhatTheyWant();while(whatTheyWant !=4){
displayItem(whatTheyWant);
whatTheyWant = getWhatTheyWant();
}
}
//getWhatTheyWant function
int getWhatTheyWant(){
int choice;
cout<<"n1 — just plain items" <<endl;
cout<<"2 — Helpfull items" <<endl;
cout<<"3 — Harmfull items" <<endl;
cout<<"4 — Quit programn" <<endl;cin >>choice;
return choice;
}//display items function
void displayItem(int x){ifstream objFile("text.txt");
string name;
double power;while(objFile >>name >>power){
if(x==1 && power == 0){
cout<<name<< ' ' <<power <<endl;
}
else if(x==2 && power>0){
cout<<name<< ' ' <<power<<endl;
}
else if(x==3 && power < 0){
cout<<name<< ' ' <<power<<endl;
}
}}
-
mine wouldn't run without the string header.
don't know why his worked, but great tutorial non the less. -
i get 82240 when i clicked 1, i get "8224" in between the name and power, what the heck?
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How to modify the code if i want to write the file when reading it? For example, if the whattheywant is 3 then change all the negative numbers into -1 ; if the what they want is 2 then change all the positive numbers into 1. Can we write and read at the same time?
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why did he include the switch statement when he could just call displayItems(whatTheyWant);
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