continue in C#

In C#, the continue keyword is used to skip the current iteration of a loop and move on to the next iteration.

Here’s an example of using the continue keyword inside a for loop:

for (int i = 0; i < 10; i++)
{
    if (i == 5)
    {
        continue;
    }
    Console.WriteLine(i);
}

In this example, the for loop will iterate from i=0 to i=9. However, when i=5, the continue statement is executed, and the current iteration of the loop is skipped. Therefore, only the values of i from 0 to 4 and 6 to 9 will be printed to the console.

The continue keyword can also be used inside a while or do-while loop, as shown in the following example:

int i = 0;
while (i < 10)
{
    i++;
    if (i % 2 == 0)
    {
        continue;
    }
    Console.WriteLine(i);
}

In this example, the while loop will iterate from i=1 to i=10. However, when i is even (i.e., i % 2 == 0), the continue statement is executed, and the current iteration of the loop is skipped. Therefore, only the odd values of i from 1 to 9 will be printed to the console.

The rules for using the continue keyword in C# are as follows:

1. The continue statement can only be used inside a loop.
2. When the continue statement is executed inside a loop, the current iteration of the loop is skipped, and the control flow moves to the next iteration.
3. When the continue statement is executed inside a nested loop, only the innermost loop is affected, and the outer loops continue to iterate normally.

In summary, the continue keyword is a useful tool for controlling the flow of execution in C# loops. By using the continue keyword, you can skip certain iterations of a loop and focus on the iterations that are relevant to your program.