Multiple Choice Quiz Program Using C++ File Handling 3a5s5h

INDEX INTRODUCTION

TO

INTRODUCTION

TO

HEADER –FILES

AND

C++ PROJECT

FUNCTIONS SOURCE FUTURE OUTPUT

CODE VALIDATIONS

USED

INTRODUCTION TO C++ C++ is a programming Language Developed by Bjarne Stroustrup. It was originally named as C with classes, was renamed as C++ in 1983.It is regarded as an intermediate-level language, as it comprises both high-level and lowlevel language features. Its application domains include systems software, application software, device drivers, embedded software, high performance server and client applications, and entertainment software such as video games. C++ continues to be used and is one of the preferred programming languages to develop professional applications. The Features of C++ as a Language: • C++ is an open source ISO-standardized language. For a time, C++ had no official standard and was maintained by a defacto standard, however since 1998, C++ is standardized by a committee of the ISO. • C++ s both static and dynamic type checking. C++ allows type conversions to be checked either at compile-time or at runtime, again offering another degree of flexibility. Most C++ type checking is, however, static. • C++ is portable. As one of the most frequently used languages in the world and as an open language, C++ has a wide range of compilers that run on many different platforms that it. Code that exclusively uses C++'s standard library will run on many platforms with few to no changes.

INTRODUCTION TO PROJECT Quiz game is a very popular General Knowledge Game. Quiz game increases the knowledge of the player. It is used to check the knowledge within us. The provided source code is a simple Quiz game programmed in C++ language. This program is based on the exploitation of the ordered arrangement of question number, question, options and the answer in a file. In this program several question are provided to the player. The players are provided with 4 options in it. Player is all need to choose the suitable option from the 4 option available in the screen. The player needs to type either A, B, C, or D according to the suitable answer provided in it. The player will score the points with each correct answer provided marks will be deducted for wrong answer. This program displays questions in a random order from the question bank. The highlight of this program is that question bank can be updated (s can add questions to the question bank). SYSTEM REQUIREMENTS Operating System- Windows XP or above Keyboard Turbo C++

HEADER FILES AND FUNCTIONS USED S No.

Header files

Description

1

iostram.h

2

conio.h

Provides functions for standard I/O operations Used for getch() and clrscr()

3

string.h

Used for strcmp()

4

stdio.h

Used for gets()

5

fstream.h

Provides function for file handilng

6

process.h

Used for exit(0)

7

stdlib.h

Used for generating random numbers

8

ctype.h

Provides functions for character handling

S.No

Functions

Description

1

void rndm(int ar[10])

To generate random question numbers

2

void init()

To get details from

3

To conduct the quiz

4

void func(int q,int ar[10]) void define()

5

void display()

To question numbers to func() by invoking rndm() To display the points scored

6

void edit()

To add questions

SOURCE CODE #include #include #include<string.h> #include<stdio.h> #include #include<process.h> #include<stdlib.h> #include class contest {int roll; float x; char name[20],s[100],ans[100]; void questions(); public: contest() {x=0.0;} void rndm(int ar[10]); void init(); void func(int q,int ar[10]); void define();

void display(); void edit(); }; void contest::define() {int arr[]={1,2,3,4,5,6,7,8,9,10,11,12,13}; ifstream in; char A; int i=1,r,sh; rndm(arr); questions(); in.open("ques.txt"); { { {while(i<11) { cout<<<")"; func(i-1,arr); i++;} return; } } }

} void contest::func(int p,int array[]) { ifstream in,fin; in.open("ques.txt"); fin.open("ques.txt"); char A,answer; int i=0,j=1,r=0,sh; while(!fin.eof()) { i++; if(i%5==1) in>>sh; {if(sh==array[p]) { { do { fin.getline(s,100);r++;} while(r<(sh-1)*5+2); cout<<endl<<s<<endl; { if(j%5==3)

{ fin.get(A); lb: cout<<"\nans: "; gets(ans); i=-1; j=-1; answer=tolower(ans[0]); if(answer<'a'||answer>'d') {cout<<"wrong choice"; goto lb; } else if(answer==A) { x=x+5; cout<<"your answer is correct\n"; } else { if(x>0) x=x-2.5; cout<<"wrong answer\n"; cout<<"the correct answer is "< <<endl;

} cout<<"press any key to continue"; getch(); clrscr(); cout<<endl<<endl; return; } j++; } } } } if(i%5==1)sh++; } in.close(); } void contest::rndm(int p[]) {randomize(); //shuffle p for (int i=12; i rel="nofollow">0; --i) {

//get swap index int j=random(i); //swap p[i] with p[j] int temp = p[i]; p[i] = p[j]; p[j] = temp; } int ar[10]; //copy first n elements from p to arr for ( i=0; i<10; ++i) ar[i] = p[i]; } void contest::questions() {ofstream file; file.open("ques.txt"); file<<"1\n When computer was first invented?\n"; file<<" a.1820 \t b.1823\n"; file<<" c.1834 \t d.1922\n"; file<<'a'<<"\n"; file<<"2\n Which day is celebrated as 'World Computer Literacy day'?\n"; file<<" a.October 6 \t b.December 2\n"; file<<" c.October 4 \t d.May 15\n"; file<<'b'<<"\n";

file<<"3\n Who is known as human computer of India?\n"; file<<" a. Sundar Pichai \t b.Sathya Nathella\n"; file<<" c. Shakunthala Devi\t c.Derek o brein\n"; file<<'c'<<"\n"; file<<"4\n 'Do no evil' is the tag line of\n"; file<<" a. Adobe \t b. Microsoft\n"; file<<" c. Linux \t d. Google\n"; file<<'d'<<"\n"; file<<"5\n Extension of PDF\n"; file<<" a. Portable Document Format \t b. Personal Document Format\n"; file<<" c. Portable Digital format \t d. Presentation Document Format\n"; file<<'a'<<"\n"; file<<"6\n Which company invented floppy disk?\n"; file<<" a. Microsoft \t b. Apple\n"; file<<" c. Intel \t d.IBM\n"; file<<'a'<<endl; file<<"7\n IC chips are usually made of\n"; file<<" a. Lead \t b. Silicon\n"; file<<" c. Chromium \t d. Gold\n"; file<<'b'<<endl; file<<"8\n Technology no longer protected by copyrights and available to all is \n"; file<<" a. Proprietary \t b. Open\n";

file<<" c. Experimental \t d. Free\n"; file<<'a'<<endl; file<<"9\n In binary language each alphabet is made up of unique combination of \n"; file<<" a. 8 bytes \t b.8 kbytes\n"; file<<" c. 8 character \t d. 8 bits\n"; file<<'d'<<endl; file<<"10\n The term bit is short for\n"; file<<" a. Byte

\t b. Binary language\n";

file<<" c. Binary digit \t d.Binary number\n"; file<<'c'<<endl; file<<"11\n Who invented graphical use interface(GUI)?\n"; file<<" a.Microsoft \t b.Apple\n"; file<<" c.Xerox \t d. IBM\n"; file<<'c'<<endl ; file<<"12\n What is the transfer rate of a satandard USB2.0?\n"; file<<" a.100Mbit/s \t b.480 Mbit/s\n"; file<<" c.1 Gbit/s \t c. 250 Mbit/c\n"; file<<'b'<<endl; file<<"13\n Who invented USB?\n"; file<<" a. HP \t b.Samsung\n"; file<<" c. Intel \t d. AMD\n"; file<<'c'<<endl;

file.close(); } void contest::edit() { char [25],q[100],a[100],b[100],c[100],d[100],answer; int no; cout<<"enter \t"; gets(); if(strcmp(,"")==0) { ofstream out; out.open("ques.txt",ios::app); cout<<"Enter question no\n"; cin>>no; out<<no+13<<endl; cout<<"Enter question name\n"; gets(q); out<<<"\n"; cout<<"enter options\n"; cout<<"Enter option a\n"; gets(a); out<<"a. "< <<"\t"; cout<<"Enter option b\n";

gets(b); out<<"b. "<<<"\n"; cout<<"Enter option c\n"; gets(c); out<<"c. "< <<"\t"; cout<<"Enter option d\n"; gets(d); out<<"d. "< <<"\n"; cout<<"enter correct option\n"; cin rel="nofollow">>answer; out< <<"\n"; out.close(); } } void contest::init() { cout<<"contestant name - "; gets(name); cout<<"contestant roll no - "; cin rel="nofollow">>roll; } void contest::display() {

cout<<"\nresult:: \n"< <<" got total "<<x<<" marks \n"; } void main() { clrscr(); contest r; cout<<" \n\n\n\t\t\t Quiz Contest\n"; cout<<"GENERAL INSTRUCTIONS\n"; cout<<"This is a multiple choice quiz contest.\n"; cout<<"5 points will be awarded for each correct answer and\n"; cout<<"\t2.5 marks will be DEDUCTED for each wrong answer.\n"; cout<<"If more than one options are entered,"; cout<<"\n\t FIRST OPTION to be entered will be considered\n"; cout<<"Press any key to continue"; getch(); clrscr(); cout<<endl<<endl; r.init(); L: cout<<"\nSelect your choice \n\t1 start\n\t2 display\n\t3 add questions\n"; cout<<"\t0 quit\n"; int c;

cin>>c; char reply; clrscr(); switch(c) {case 1: r.define(); break; case 2: r.display(); break; case 3: r.edit(); break; case 0: goto Last; default: cout<<"wrong choice \n"; } cout<<"\nenter your reply : Press y for continuing \t"; cin>>reply; if(reply=='y'||reply=='Y') goto L; else Last: cout<<"\n\n\nTHANKS FOR SPENDING YOUR VALUABLE TIME"; cout<<"\nDone by Pugazhendhi and Shivakumar"; getch(); }

FUTURE VALIDATIONS 1) Inclusion of timer 2) Inclusion of graphics 3) Producing sound

Output for a sample run