Thread: Basic while loop issues

In my first program I was asked to output the perfect squares less than the value n.

	int i = 0;
	int x = 0;
	int n = in.nextInt();
		while (i < n)
		{
			i = x*x;
			System.out.print(i + " ");
			x = (x + 1);
		}

My issue is if I enter 90, it outputs 100. I know this is because after 9*9 it goes to 10*10 but how can I change it so it doesn't do this?

My second issue is a bit more complicated and I have no idea what to do. I have to output all positive numbers divisible by 10 less than n:

	int i = 0;
	int x = 0;
	int n = in.nextInt();
		while (i < n && i > 0)
		{
			i = x/n;
				if (i%10==0)
				{
					System.out.print(i + " ");
				}	
				else 
				{
					x = (n-1);
				}
		}

my output is all zeros. Why?! How do I fix this?

my output is all zeros. Why?

int x = 0;

Also: i = x/n;
if x < n because of integer math


Try debugging the code by adding some println statements to print out the values of all the variables as they are set and used.