What does nested loops means?

[Zhankana_n]

Hi Friends,

I just stated C programming. I was not quit difficult to understand the concept of looping. But when nested looping concept started , It's too difficult for me to understand.]

I am not getting what does nested loops exactly means. Is nested loop is any new type of loop? or what.

Pleas help me to understand the concept of nested loops..

[Katty]

Hi Friend,

Your confusion is valid , because it was also too difficult for me to understand the nested looping.

When we use a loop inside another loop then it is referred as nested loop.
Refer the following program in which I used "For loop" inside another "For loop":

Example of loop nesting:

for(a=0; a<=15; a++)
{
for(b=0; b<=20; b++)
{
printf(a,b);

}
}

I hope it will definitely help you to understand nesting of loops...

[kelfro]

Hi,

I have C language program which will demonstrate you the concept of the nested loops. Nesting simply means loop within loop. Nested loops helpful in the program in which we have to test multiple complex conditions .

Please go through below program:

#include <stdio.h>

int main(void)
{
int ans, x, ch, correct;

for(x= 1; x< 11; x++) {
printf(" %d + %d = ?", x, x);
scanf("%d", &ans);

if(answer == x+ x)
printf("correct!\n");
else {
printf("Wrong.\n");
printf("Try again.\n");

right = 0;
// nested for loop
for(ch = 0; ch < 3 && !correct; ch++) {
printf(" %d + %d = ? ", i, i);
scanf("%d", &ans);

if(answer == i + i) {
printf("correct!\n");
correct= 1;
}
}

if(!correct)
printf("answer = %d.\n", i + i);
}
}

return 0;
}

[Zecho]

Hi friend,

I don't have sound knowledge about the nested loops, But below are the some points which will help you to understand the concept of the nested loops :

1. The process of using loop inside the another loop is known as "nested loop".

2. Nested loops used when you want to run multiple conditions at the same time.

3. The inner loop will execute only when the outer loop condition is true.

4. If the condition of the outer loop is false then the program won't execute the inner loop.

[Reegan]

Hi All,

*. Nested loops comprises statement of another looping within single loop. Usually nested loops are useful while creating the "matrix".

*. I hope you aware that loop can include any number of statement of the loops in it. If you use any "Loop" inside other "Loop" is known as loop nesting.

*. Mostly loop of the inner side is used to for row counting, While outer is for column counting.

Please go through below example:

Example:

#include

void main ( )

{

int a, b;

clrscr ( );

for (b=1; b<=4; b++)

{

for (a=1; a<=5; a++)

{

printf (“#”)

}


}

getch ( );

}

[opaper]

Hi Friend,

Below is the syntax for the Nested loops:

Nested loops syntax :-

for (initialization ; condition to test; decrement/increment )

{

//body of loop

for (initialization ; condition to test; decrement/increment)

{

loop body;

}

}

hopefully It will helps you...