LOOPS

Question

int x = 1;
while (x++ < 5)
{
if (x % 2 == 0)
x += 2;
}

Could someone explain what the part in the brackets does? isn't x%2=1 ?

Answer 1

Razvan Tivadar i think you are confuse with 4,5 as answer.just look here at this code
int x = 1;
while (x++ < 5)
{
if (x % 2 == 0)
x += 2;
Console.WriteLine(x);
//4
//5
}
The hole confusion is in the missing curlybraces of the if condition.
First x is = 1 that x is compared to 5 that's become true and x is increase by 1 and become 2.

Second, the condition run and x%2==0 become true cause x is 2.and x+=2 runs x is now 4 and it prints 4.

Third, 4(x) is now comperd to 5, four is less than 5 so condition become true loopruns x is now 5.

Fourth, in condition x%2==0 become false because x is now five.
And because of the if condition did not have braces print functions is also a part of loop rather than just if statement.So in the last 5 got printed.

I think this helps.

Answer 2

Yes you are right, values that pass the condition is 2 and 4.
Others are failed because 1 and 3 are not divisible by 2.
It is same as,
if(x%2==1){
continue;
}else{
x+=2;
}

Answer 3

int x = 1;
while (x < 10)
{
if (x % 2 == 0){
x += 2;
Console.WriteLine(x);
}
x++;
}

This is more secure

Answer 4

Thanks a lot :)

Answer 5

Well the number of results is correct (2) but when i run the code it gives me 4 and 5

Answer 6

But then it wouldn't respect the condition <5 right?

Answer 7

Ok thanks, i was just asking because it was in the quiz

Answer 8

But i don't get why the values have to be divisible by 2

Answer 9

Ok