C do...while Loop

October 24, 2021 1:28 pm IST

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C do...while Loop

The do while loop executes a specified statement until the test condition evaluates to false.

Note: Unlike while loop, In do...while loop, the condition is evaluated after executing the statement, resulting in the specified statement executing at least once.

Syntax

do{ // code block }while(condition);

Simple do...while Loop

In the following program, we will print 'Hello World' for 5 times using do...while loop.

Source Code

C Compiler

#include <stdio.h> int main() { int i = 0; do{ printf("Hello World \n"); i++; }while(i<5); return 0; }

Output

Hello World Hello World Hello World Hello World Hello World

do...while Loop to print numbers

In the following program, we will print numbers from 0 to 4 using do...while loop.

Source Code

C Compiler

#include <stdio.h> int main() { int i = 0; do{ printf("%d ",i); i++; }while(i<5); return 0; }

Output

0 1 2 3 4

do...while Loop to print Elements in a Array

In the following program, we will print all the elements in an array using do...while loop.

Source Code

C Compiler

#include <stdio.h> int main() { int i = 0; char absent[3] = {13, 25, 36}; printf("Absent Roll No's are: "); do{ printf("%d ", absent[i]); i++; }while(i<3); return 0; }

Output

Absent Roll No's are: 13 25 36

do...while Loop to print Array of Strings

In the following program, we will print the array of strings using do...while loop.

Source Code

C Compiler

#include <stdio.h> int main() { int i = 0; char students[3][6] ={"gouri", "ram","alex"}; do{ printf("%s \n", students[i]); i++; }while(i<3); return 0; }