For Versus While

Question: Is there any example for which the following two loops will not work the same way?  

C

/*Program 1 --> For loop*/
for (<init - stmnt>;<boolean - expr>;<incr - stmnt>) {
<body-statements>
}

/*Program 2 --> While loop*/
<init - stmnt>;
while (<boolean - expr>) {
<body-statements>
<incr-stmnt>
}

Solution: If the body-statements contains continue, then the two programs will work in different ways See the below examples: Program 1 will print “loop” 3 times but Program 2 will go in an infinite loop. 

Example: using “for” loop
Syntax:

    for(initialization ; condition ; increment/decrement)
    {  
        //statement 
    }      

C

#include <stdio.h>

int main()
{
    int  sum=0, i;
    for(i=1;i<=5;i++)
    {
        sum=sum+i;
    }

      printf("SUM = %d" , sum);

      return 0;
}

Output

SUM = 15

Example: using the “while” loop
Syntax:

    while(condition)
    {  
        //code for execution
    }

C

// Example:

#include<stdio.h>

int main()
{
    int no=1, sum=0;

    while(no<=5)
    {
        sum=sum+no;
        no++;
    }

      printf("SUM = %d" , sum);

      return 0;
}

Output

SUM = 15

Please write comments if you want to add more solutions to the above question.