For to while?

[Mattedatten]

Hey all
I'm trying to do a school exercise in java, and I fail at it, but it seems like my teacher doesnt know what's wrong.

I want to do a "for" to a "while"
(Primtal == true earlier in the code)
Here's the for:

for (int k=2; k<tal; k++)
{
	if (tal % k == 0)
	{
		Primtal = false;
	}
}

Here's my try at a while:

int k = 2;
while(k < tal)
{
	k = k + 1;			
	if (tal % k == 0)
	{
		Primtal = false;
	}
					
}

I dont get the while "primtal" to become false, when the for does get "primtal" to false...
Any help?
///Mattedatten

[r035198x]

Put

k = k + 1;

as the last line of the while.

[zellazode]

the problem is the line:
k = k + 1

you do it before the test "if" - and so on your first entrance to the loop, you check it for k = 3.

In the for loop, k++ doesn't happen til you finish one iteration of the loop, and so in that first iteration k=2 and "if" is checked on this k. only after the iteration ends, k++ occurs.

So, just move k=k+1 to after the if-block.

[Mattedatten]

the problem is the line:
k = k + 1

you do it before the test "if" - and so on your first entrance to the loop, you check it for k = 3.

In the for loop, k++ doesn't happen til you finish one iteration of the loop, and so in that first iteration k=2 and "if" is checked on this k. only after the iteration ends, k++ occurs.

So, just move k=k+1 to after the if-block.

Wow, that's an fast answer, and easy solution :) Thanks!

[phoenix123]

refer examples on java2examples.com

[Fubarable]

phoenix, all of your posts have such similarity as to suggest that you're spamming answers with plugs to a web site. Please be careful with this as this could lead to sanctions.