C program to illustrate use of continue in for loop

/* C program given below demonstrate the use of the continue statement in for loop */
#include <stdio.h>
int main()
{
int i;
for (i = 0; i < 10; i++)
{
if (i % 2 == 0)
{
continue;
}
printf("%d, ", i);
}
return 0;
}

Output:
1 3 5 7 9 
Explanation : The program above displays all odd number between the range 1 to 10.
Step 1: int i;
The variable i is declared as integer to store integer numbers.
Step 2: The control enters into the for loop.
for (i = 1; i < 10; i++)
{
if (i % 2 == 0)
{
continue;
}
printf("%d, ", i);
}
  2.1 : intilize the variable i to 1 in intilization section of for loop. .i.e i=1
  2.2 : control jumps to test the condition in the condition section , i<10 the condition tested is true i.e. 1<10 results in true.
  2.3 : control enters inside the for loop body and start executing statement
if (i % 2 == 0)
{
continue;
}
printf("%d, ", i);
}
if the condition tested if(i%2==0) evaluates true the flow continues to next iteration of the loop by skipping the printf("%d",i); statement.
Step 3: The process continue till the value of i<10, as soon as the value of i becomes 10 the execution of the loop terminates and stops the execution.
And finally shows the final output.

C program to illustrate use of continue in while loop

/* C program given below demonstrate the use of the continue statement in while loop */
#include <stdio.h>
int main()
{
int count = 5;
while (count >= 0)
{
if (count == 2)
{
count--;
// Skip printing count if it is equal to 2.
continue;
}
printf("%d ", count);
count--;
}
return 0;
}

Output:
5 4 3 1 0 
The program above displays number in reverse order between range 1 to 5 except 2.

Explanation : i. int count = 5;
The variable counter count is declared as int variable and assigned value 5. i.e count=5.
ii. control enters in to the while loop.
while (count >= 0)
test the condition expression which true (while(5>=0)) then control enters into the while loop body.
iii. And executes
if (count == 2)
{
count--;
// Skip printing count if it is equal to 2.
continue;
}
Here condition if(count==2) tested is false( if(5==2)) so statements inside if dose not execute.
And start executing the rest of statement inside body of loop i.e.
iv.printf("%d ", count);
count--;
displays the value of count i.e.  5 on the output screen and decrement(count--) the value of count by 1 then count becomes 4 , count=4.
This process continues till the value of count=3.
when the value of count becomes 2 (count=2)then
the statement
if (count == 2)
{
count--;
// Skip printing count if it is equal to 2.
continue;
}
executes.
the if(count==2) is true (if(2==2)) then the value of count decremented by 1(count--)
the continue statement skip the statements inside loop and continue to next iteration.
v. control jumps back to while loop and test the condition while(count>=0) , which is again true (while(1>=1)).
control enters in the while loop body and if statement , shows output 1.
the process continues till the value of i>=0.