//program to calculate area of a circle,rectangle,scalene triangle using function overloading
#include<iostream.h>
#include<conio.h>
#include<math.h>

void area(float r)
{ cout<<"\nArea of triangle is :"
      <<(4* 3.14*r);
}

void area(int L, int B)
{ cout<<"\nArea of rectangle is :"
      <<(L*B);
}

void area(float a, float b, float c)
{float s=(a+b+c)/2;
 cout<<"\nArea of scalene triangle is :"
      <<sqrt(s*(s-a)*(s-b)*(s-c));
}

void main()
{
clrscr();
int L,B;
float r,a,b,c;
int ch;
cout<<"\n Press 1 to calculate area of circle.";
cout<<"\n Press 2 to calculate area of rectangle.";
cout<<"\n Press 3 to calculate area of scalene triangle.";
cout<<"\n Enter your choice: ";
cin>>ch;
if(ch==1)
{ cout<<"\n Enter radius of the circle: ";
  cin>>r;
  area(r);
}
else if(ch==2)
{ cout<<"\n Enter length & breadth of the rectangle: " ;
  cin>>L>>B;
  area(L,B);
}
else if(ch==3)
{ cout<<"\n Enter three sides of the triangle : ";
  cin>>a>>b>>c;
  area(a,b,c);
}
else
 cout<<"\n You have entered wrong choice!!!!";
 getch();
}

//program to count uppercase,lowercase,digits and other charcters
#include<iostream.h>
#include<conio.h>
#include<ctype.h>
#include<stdio.h>

void COUNT(char str[20]);

void main()
{clrscr();
 char string[20];
 cout<<"\n Enter a string: ";
 gets(string);
 COUNT(string);
 getch();
}

void COUNT(char str[20])
{int upper=0,lower=0,digit=0,other=0;
 for(int i=0; str[i]!='\0'; i++)
 {
  if(isupper(str[i]))
upper++;
  else if(islower(str[i]))
lower++;
  else if(isdigit(str[i]))
digit++;
  else
other++;
  }
  cout<<"\n Number of uppercase characters = "<<upper;
  cout<<"\n Number of lowercase characters = "<<lower;
  cout<<"\n Number of digits = "<<digit;
  cout<<"\n Number of other characters = "<<other;
 }

Topics to be Discussed while Learning C++ Programming.

Advanced C++
Object Oriented Design
Operating Systems
Algorithm
Arrays
Basics
C++ Programing
Functions
Flow Chart
Data Structures
Projects
String
Loops
Operators
Structure
Series
Matrix
Logical Operator
If Else Statement
Fibonacci Series

One can easily learn C++ online by going through different tutorials. After getting aware with all the concepts of C++ all you need to do is code and just code. To become a good programmer in C++ one needs to practice coding as much as possible. Try to build codes with your logic. You will soon have a great command in C++. Learning programming definitely isn't an overnight thing, and takes a large amount of hard work and dedication (especially with C++). This guide will help you through the process.

Read on code styles and good practices. After some time, you will notice how your code quality increases, the initial project you choosed is too big and is getting messy? Trash it, Start another one. You got the most important thing out of it already, the experience. Then continue looking up online about programming topics, you can participate in stack overflow to try to answer people’s questions, or read answered questions that could interest you.

Install a C++ compiler (and possible IDE). A compiler is required for programming in C++, because the actual source code has to be compiled into a file that your computer can run. If you are using Windows a good option would be Visual C++ 2010 Express, or if your using Linux a good one is Geany. Both come with an IDE (independent development environment) built in, which can make the process of writing source code easier.
Try out each new concept. An important part of programming is not only reading about the different concepts, but using them in your own code. Copy-pasting the code into your IDE will only go so far. It is much more beneficial to type out each example and even try creating your own program ideas that use the concept being taught to maximize the amount of information retained.

Learn from different notes and books. One of the best things about programming is that no matter what level of skill you have in programming, there will always be source code readily available that is at that same level or one step above you. A good way to learn from more complicated source code is to read through until you reach a point which you don't understand, then try to work it out in your head; if you don't know a certain part of the code, read about it in your tutorial or reference material until you do.

Help others who need help. Now that you have learned about C++, you should start helping other newbies online with their problems and get them started on the same journey you had! Don't get frustrated if the person who asked you for help doesn't want to listen to your advice: someone else could learn from the answer you provide even if the original poster didn't.

Be an expert in programming. Master core coding skills that what company need. Get practical exposure & placement support. I hope you find it useful, for more information related to coding you can  bookmark this website and share link with friends.

Happy Coding!

#include<iostream.h>
#include<conio.h>
#include<graphics.h>
#include<stdlib.h>
#include<dos.h>

void main()
{
clrscr();
int x=0,your,n,m;
char ch1[100],ch2,ch3,ch4,ch5,ch6,ch7,ch8,ch9,ch10,ch11,opt;
cout<<"\n @@------------------------------------@@   ";
cout<<"\n @@  WELCOME TO KAUN BANEGA CROREPATI  @@   ";
cout<<"\n @@                                    @@   ";
cout<<"\n @@            SEASON - 9              @@   ";
cout<<"\n @@                                    @@   ";
cout<<"\n @@              2018                  @@   ";
cout<<"\n @@                                    @@   ";
cout<<"\n @@    PROGRAM PARTNER HERO MOTORS     @@   ";
cout<<"\n @@         POWERED BY NISAAN          @@   ";
cout<<"\n @@      ASSOCIATION WITH SONYTV       @@   ";
cout<<"\n @@                                    @@   ";
cout<<"\n @@------------------------------------@@   ";
cout<<"\n Enter Your Name : ";
cin>>ch1;
cout<<"\n Enter Your Age : ";
cin>>n;
textcolor(CYAN);
clrscr();
cout<<"Which Country is Known as THE HOLYLAND ? \nA.Jerusalem\nB.Iraq\nC.Arab ";
cout<<"\nAnswer : ";
cin>>ch2;
textcolor(YELLOW);
if(ch2=='A')
{
x=x+10;
cout<<"Good Job.Your Score is "<<x;
}
else
cout<<"Sorry wrong answer.";
getch();
clrscr();
cout<<"\n Press Y to Continue OR N to EXIT .(Y/N): ";
cin>>opt;
if(opt=='N')
{exit(0);
}
cout<<"Which is THE LONGEST RIVER IN THE WORLD ?\nA.GANGA\nB.NILE\nC.CASPIAN ";
cout<<"\nAnswer : ";
cin>>ch2;
textcolor(WHITE);
if(ch2=='B')
{
x=x+10;
cout<<"Good Job.Your Score is "<<x;
}
else
cout<<"Sorry wrong answer.";
getch();
clrscr();
cout<<"\n Press Y to Continue OR N to EXIT .(Y/N): ";
cin>>opt;
if(opt=='N')
{exit(0);
}
cout<<"Which is Known THE ROOF OF THE WORLD ?\nA.Nepal\nB.Kathmandu\nC.Tibet ";
cout<<"\nAnswer : ";
cin>>ch2;
textcolor(LIGHTGREEN);
if(ch2=='C')
{
x=x+10;
cout<<"Good Job.Your Score is "<<x;
}
else
cout<<"Sorry wrong answer.";
getch();
clrscr();
cout<<"\n Press Y to Continue OR N to EXIT .(Y/N): ";
cin>>opt;
if(opt=='N')
{exit(0);
}
cout<<"Which Country is Known as THE LAND OF RISING SUN ?\nA.Norway\nB.Japan\nC.Tibet ";
cout<<"\nAnswer : ";
cin>>ch2;
textcolor(WHITE);
if(ch2=='B')
{
x=x+10;
cout<<"Good Job.Your Score is "<<x;
}
else
cout<<"Sorry wrong answer.";
getch();
clrscr();
cout<<"\n Press Y to Continue OR N to EXIT .(Y/N): ";
cin>>opt;
if(opt=='N')
{exit(0);
}
cout<<"Which Country is Known as THE GIFT OF NILE ?\nA.Nigeria\nB.Egypt\nC.Africa ";
cout<<"\nAnswer : ";
cin>>ch2;
textcolor(LIGHTBLUE);
if(ch2=='B')
{
x=x+10;
cout<<"Your Score is "<<x;
}
else
cout<<"Sorry wrong answer.";
getch();
clrscr();
cout<<"\n Press Y to Continue OR N to EXIT .(Y/N): ";
cin>>opt;
if(opt=='N')
{exit(0);
}
cout<<"Which Country is Known as THE LAND OF MIDNIGHT SUN ?\nA.Norway\nB.Japan\nC.Australia ";
cout<<"\nAnswer : ";
cin>>ch2;
textcolor(BROWN);
if(ch2=='A')
{
x=x+10;
cout<<"Your Score is "<<x;
}
else
cout<<"Sorry wrong answer.";
getch();
clrscr();
cout<<"\n Press Y to Continue OR N to EXIT .(Y/N): ";
cin>>opt;
if(opt=='N')
{exit(0);
}
cout<<"Which Country is Known as THE LAND OF THUNDERBOLT ?\nA.Bhutan\nB.Canada\nC.Brazil ";
cout<<"\nAnswer : ";
textcolor(LIGHTBLUE);
cin>>ch2;
if(ch2=='A')
{
x=x+10;
cout<<"Your Score is "<<x;
}
else
cout<<"Sorry wrong answer.";
getch();
clrscr();
cout<<"\n Press Y to Continue OR N to EXIT .(Y/N): ";
cin>>opt;
if(opt=='N')
{exit(0);
}
cout<<"Which City is Known as THE WINDY CITY ?\nA.Jerusalem\nB.Japan\nC.Chicago ";
cout<<"\nAnswer : ";
cin>>ch2;
textcolor(LIGHTRED);
if(ch2=='C')
{
x=x+10;
cout<<"Your Score is "<<x;
}
else
cout<<"Sorry wrong answer.";
getch();
clrscr();
cout<<"\n Press Y to Continue OR N to EXIT .(Y/N): ";
cin>>opt;
if(opt=='N')
{exit(0);
}
cout<<"Which Country is Known as THE LAND OF WHITE ELEPHANTS ?\nA.Bangladesh\nB.Thailand\nC.India ";
cout<<"\nAnswer : ";
cin>>ch2;
if(ch2=='B')
{
x=x+10;
cout<<"Your Score is "<<x;
}
else
cout<<"Sorry wrong answer.";
getch();
clrscr();
cout<<"\n Press Y to Continue OR N to EXIT .(Y/N): ";
cin>>opt;
if(opt=='N')
{exit(0);
}
cout<<"Which City is Known as THE CITY OF SEVEN HILLS ?\nA.Rome\nB.Nilgiri Hills\nC.Tibet ";
cout<<"\nAnswer : ";
textcolor(CYAN);
cin>>ch2;
if(ch2=='A')
{
x=x+10;
cout<<"Your Score is "<<x;}
else
cout<<"Sorry wrong answer.";
getch();
clrscr();
cout<<"\n Press Y to Continue OR N to EXIT .(Y/N): ";
cin>>opt;
if(opt=='N')
{exit(0);
}
cout<<"Which Continent is Known as THE DARK CONTINENT ?\nA.Asia\nB.Australia\nC.Africa ";
cout<<"\nAnswer : ";
textcolor(LIGHTBLUE);
cin>>ch2;
if(ch2=='C')
{
x=x+10;
cout<<"Your Score is "<<x;
}
else
cout<<"Sorry wrong answer.";
 getch();
clrscr();
 if(x==100)
 cout<<"Superb Good Job ! Play Again ";
 if(x==90)
{ cout<<"Congratulations ! Well Played ";
 cout<<"Your Score is 90 ?";
}
 if(x==80)
{ cout<<" Well Played .";
 cout<<"Your Score is 80 ?";
}
if(50==x||x==70||x==60)
{ cout<<"Average Score .";
 cout<<"Your Score is "<<x<<" Better Luck next time ";
}
 else if(x<=40)
 cout<<"Poor Performance ! Not Even 5 Questions are Right ";
getch();
}

//program to find sum of the series using user defined function
#include<iostream.h>
#include<conio.h>
#include<stdio.h>
void main()
{
clrscr();
long x,sum,term,fact=1
int i,n;
cout<<"\n Enter the Sum of x and n : ";
cin>>x>>n;
sum=1+i;term=1;
for(i=1;i<=n;i++)
{
fact=fact*i;
term=term+(x/fact);
sum=fact,term;
}
cout<<"\n The Sum of the Series = "<<sum;
getch();
}
getch();
}

//program to store and display the details of mobile
#include<stdio.h>
#include<iostream.h>
#include<conio.h>
struct MOBILE
{int IMEIno;
char modelno[20];
char brand[30];
char details[20];
}MOB;
int i,n,IMEINO;
void main()
{clrscr();
int modelno;
char brand;
char details;

int flag=0;
{ cout<<"\n Enter no.ofmobiles:";
cin>>n;
cout<<"\n Enter modelno. of mobile:";
cin>>(modelno) ;
cout<<"\n Enter brand of mobile:";
gets(brand[i]);

cout<<"\n Enter details of mobile:";
gets(details[i])

getch();
}
cout<<"\n Enter the IMEINO to be searched:";
cin>>IMEINO;
for (i=0;i<n;i++)
{if(flag==1)
cout<<" mobile[i].mobile.modelno" <<"mobile[i].mobile. brand"
<<"mobile[i].mobile.modetails"<<(i+1);
else
cout<<"\n mobile not found:";
  }