More examples of while loop
While Set 1:Q1-Q10 While Set 2:Q11-Q20 While Set 3:Q21-Q30
For Loop While Loop Do while Loop
While loop
Syntax :
while(condition)
{
statements;
statements;
statements;
}
* While loop is an entry control loop.
* In while loop the condition is checked first and then the statements of the loop are executed.
* In while loop if the specified condition is true then only the control enters the loop otherwise not.
While loop examples:
Example:1
Write a C program to print numbers from 1 to 10
Sol:
#include <stdio.h>
int main()
{
int i=1;
while(i<=10)
{
printf("%d\n",i);
i++;
}
return 0;
}
Output:
1
2
3
4
5
6
7
8
9
10
Example:2
Write a C program to print numbers from 1 to 10 in reverse order
Sol:
#include<stdio.h>
int main()
{
int i=10;
while(i>=1)
{
printf("%d\n",i);
i--;
}
return 0;
}
Output:
10
9
8
7
6
5
4
3
2
1
Example:3
Write a C program to print all even numbers from upto 20
Sol:
#include<stdio.h>
int main()
{
int i=2;
while(i<=20)
{
printf("%d\n",i);
i=i+2;
}
return 0;
}
Output:
2
4
6
8
10
12
14
16
18
20
Example:4
Write a C program to print alll even numbers from upto 20 in reverse order
Sol:
#include<stdio.h>
int main()
{
int i=20;
while(i>=2)
{
printf("%d\n",i);
i=i-2;
}
return 0;
}
Output:
20
18
16
14
12
10
8
6
4
2
Example:5
Write a C program to print alll odd numbers from upto 25
Sol:
#include<stdio.h>
int main()
{
int i=1;
while(i<=25)
{
printf("%d\n",i);
i=i+2;
}
return 0;
}
Output:
1
3
5
7
9
11
13
15
17
19
21
23
25
