Presentation on nesting of loops
- 6. Question. What is a loop?A loop is a programming structure that contains an executable block of code that repeats so long as a given condition is true/not true.
- 7. Good programmers include a way to satisfy the condition somewhere inside the executable block.loops
- 10. Nested For Loops.nested loops
- 11. Nested while loopsWHILE loops may be nested, that is you can put a WHILE loop inside another WHILE loop.
- 12. However, one must start the inner loop after starting the outer loop and end the inner loop before ending the outer loop for a logically correct nesting. Example:- nested while loopsTo print the following series:-11 21 2 31 2 3 41 2 3 4 5
- 13. Example:- nested while loops#include<stdio.h>#include<conio.h>main(){ int r=1,c=1; while (r<=5) { c=1; while(c<=r) {printf(“%d”,c);c++; }printf(“\n”); r++; }getch();}
- 14. Do……while loopExecutes the loop statement once and then repeats the loop statement until the condition is zero (false).
- 15. Starts with a do statement and then tests the repetition condition in the while statement at the end of the loop. Syntax:- do { statements; } while(condition);
- 16. The while Loopconditionevaluatedtruefalsestatement Logic of a do….while loops
- 17. Example:- do….While loop Accept any number from the user to print the number is positive or negative.#include<stdio.h>#include<conio.h>main(){ int a;do {printf(“Enter any number”);scanf(“%”,&a);if (a>=0)printf(“Number is positive”);elseprintf(“Number is Negative”); }while(a!=0);getch();}
- 18. Nested for loopsA for loop can contain any kind of statement in its body, including another for loop.
- 19. The inner loop should have a different name for its loop counter variable so that it will not conflict with the outer loop. Example:- nested forloopsWrite a program to print the following series:- 1 2 3 4 5 6 7 8 9 10