Explain 'for loop' with suitable example.

 

A 'for loop' is a control flow statement in C that allows you to execute a block of code repeatedly based on a certain condition. The basic syntax of a 'for loop' in C is as follows:

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for (initialization; condition; increment/decrement) {
   // code to be executed
}

Here, initialization sets the initial value of the loop variable, condition specifies the condition for continuing the loop, and increment/decrement updates the value of the loop variable on each iteration.

For example, let's say you want to print the numbers from 1 to 10 using a 'for loop'. The C code for this would be:

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#include <stdio.h>

int main() {
   int i;
   
   for (i = 1; i <= 10; i++) {
      printf("%d\n", i);
   }
   
   return 0;
}

In this code, we initialize the loop variable i to 1. The loop will continue as long as i is less than or equal to 10. On each iteration, i is incremented by 1 using the i++ statement. Inside the loop, we use the printf() function to print the current value of i on a new line.

When you run this program, you will get the following output:

1
2
3
4
5
6
7
8
9
10

So, this is an example of a 'for loop' in C that prints the numbers from 1 to 10.