Following is the list of the important programs of OOPs using C++. 

1. Basic program to display hello world

2. Demonstration of simple if statement

3. Greatest of two numbers using if statement

4. Greatest of two numbers using if else statement

5. Greatest of three numbers using nested if else statement

6. Print days of week using elseif statement

7. Print months of year using swich statement

8. Find Factorial of number using function

9. Demonstration of structure 

10. Print Fibonacci series

11. Demonstration of member function defined inside the class

12. Demonstration of member function defined outside the class

13. Demonstration of the use of destructor