C++ Examples
- Write a C++ Program to print a welcome text in a separate line.
- Write a Program in C++ to add two numbers.
- C++ program for addition of two numbers using functions.
- Add two numbers in C++ using class.
- Addition of two numbers using call by reference in C++
- C++ program to write a program to add two numbers using call by value.
- Swapping of two numbers in C++ without using third variable.
- Swap two numbers in C++ using function.
- C++ program to swap two numbers using class.
- C++ program to swap two numbers using call by value.
- C++ program to swap two numbers using pointers.
- Write a program to swap private data members of two classes using friend function.
- write a program to add data objects of two different classes using friend function.
- Threading in C++.
- C++ thread lambda
- C++ thread lambda with parameter
- C++ thread lambda pass by reference
- Singleton C++ example
C++ program to swap two numbers using pointers.
#include<iostream>
using namespace std;
//function to swap two numbers
void swapValue(int *number1, int *number2)
{
swap(*number1,*number2);
}
int main()
{
int x,y;
cout<<"Enter the first number to swap ";
cin>>x;
cout<<"Enter the second number to swap ";
cin>>y;
cout<<"Before swapping the numbers are "<<x<<" and "<<y<<endl;
swapValue(&x,&y);
cout<<"After swapping the numbers are "<<x<<" and "<<y;
return 0;
}Output
Enter the first number to swap 45
Enter the second number to swap 78
Before swapping the numbers are 45 and 78
After swapping the numbers are 78 and 45Another method - Using inbuilt swap function
#include<iostream>
using namespace std;
int main()
{
int x,y,*a,*b;
cout<<"Enter the first number to swap ";
cin>>x;
cout<<"Enter the second number to swap ";
cin>>y;
cout<<"Before swapping the numbers are "<<x<<" and "<<y<<endl;
a = &x;
b = &y;
//inbuilt swap function to swap two numbers
swap(a,b);
cout<<"After swapping the numbers are "<<*a<<" and "<<*b;
return 0;
}Enter the first number to swap 25
Enter the second number to swap 67
Before swapping the numbers are 25 and 67
After swapping the numbers are 67 and 25