C/C++ 中的循环在我们需要重复执行一个语句块时派上用场。 在研究 C 或 C++ 中的“for”循环期间,我们已经看到迭代次数是预先知道的,即循环体需要执行的次数是我们已知的。 C/C++ 中的 while 循环用于我们事先不知道循环的确切迭代次数的情况。循环执行根据测试条件终止。 语法: while(test_expression) { //...
C While Loop - Learn how to use the while loop in C programming with our tutorial. Understand syntax, examples, and best practices for effective coding.
Case1 (Normal):Variable ‘i’ is initialized to 0 before ‘do-while’ loop; iteration is increment of counter variable ‘i’; condition is to execute loop till ‘i’ is lesser than value of ‘loop_count’ variable i.e. 5. Case2 (Always FALSE condition): Variables ‘i’ is initialized...
we exit the loop and if it istrue, we enter the loop. After entering the loop, we execute the statements inside thewhileloop, update the iterator and then again check the condition. We do the same thing unless the condition isfalse. ...
while loop Flowchart Syntax while(test condition){ //code to be executed } If the test condition inside the () becomes true, the body of the loop executes else loop terminates without execution. The process repeats until the test condition becomes false. Example: while loop in C // ...
while ( counter < howmuch) { counter++; printf("%d\n", counter); } return 0; } Let’s take a look at the example: First you must always initialize the counter before the while loop starts ( counter = 1). Then the while loop will run if the variable counter is smaller then the...
2.1 1. While Loop 2.2 2. Do while loop 2.3 3. For Loop 3 Conclusion -: What is Loop In C Language When we want to run a particular part of a program or a block multiple times, then we use Loop Statements. Meaning that when we want to run any particular statement of our ...
while(condition){ //code } Example: #include<stdio.h> void main() { int i = 20; while( i <=20 ) { printf ("%d " , i ); i++; } } Output: 20 2. do – while loop in C It also executes the code until the condition is false. In this at least once, code is executed ...
Let us try to understand the behaviour of the while loop with a few examples.Example of do while LoopThe following program prints the Hello world message five times.Open Compiler #include <stdio.h> int main(){ // local variable definition int a = 1; // while loop execution do{ printf...
C while Loop: Example 1 Input two integers and find their average using while loop. #include<stdio.h>intmain(){inta,b,avg,count;count=1;while(count<=3){printf("Enter values of a and b:");scanf("%d%d",&a,&b);avg=(a+b)/2;printf("Average =%d",avg);}return0;} ...