A while loop in C is used to execute and repeat a block of statements based on a certain condition.
- while is the relational or logical expression that will have the value of true or false.
- When this statement is executed, the computer will evaluate the value of the condition.
- If the evaluated value is true, then the block of statement is executed and is repeated until the value of the condition is false.
There must be a statement written inside the statement block to change the value of the condition, the loop will be in the infinite state.
Print natural numbers from 1 to n using while loop in C language
int i, n;
printf("Enter the value to n:");
//while loop to print the numbers
After running the above program, the user has to enter the nth value and press the ENTER key.
Enter the value to n: 5
Then the program will be executed and the result will be displayed as shown below
Process returned 0 (0x0) execution time : 3.767 s
Press any key to continue.
Conclusion:- I hope this tutorial will help you to understand the concept of while loop structure. If there is any doubt then please leave a comment below