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C language Looping and conditional statement
- 1. P.Suman Dept.of Computer Science Avanthi Degree & P.G College
- 2. C programming language, there are circumstances where you want to do the same thing many times For example you want to print the same words ten times. You could type ten printf function, but it is easier to use a loop. The only thing you have to do is to setup a loop that execute the same printf function ten times
- 3. A loop is defined as a block of statements, which are repeatedly executed for a certain number of times Looping statements are used for running a set of statements for any number of times Looping statements are also called as iterative statements
- 4. In C Programming there are mainly two types of loops Note
- 6. Unbounded looping statements are used when we don’t know how many times the set of statements has to be repeat Unbounded looping statements can either be a Pre – Test Loop or be a Post – Test Loop In Pre – Test Loop, condition is checked before the beginning of each iteration. If condition is TRUE repetition is performed, if it is FALSE repetition is not performed
- 7. Pre – Test loop is implemented using ‘while’ statement In Post – Test Loop, first the block of statements to be repeat is executed then condition will be tested That means in Post – Test Loop, condition is checked after executing the repeating statements, if the condition is TRUE it repeat the statements again, if it is FALSE repetition is not performed Post – Test loop is implemented using ‘do - while’ statement
- 8. counter initialization; while(condition) { block of statements; ….. counter modification; ….. } Syntax
- 9. #include<stdio.h> void main() { int i=1; while(i <= 10) { printf(“MRITn”); i++; } printf(“END”); } int i = 1 i<=10 printf….MRIT i++ printf….END