[Kimmyizm]

Hi. Yes this is a homework assignment. I have read through other posts and not been able to apply what I have read to this. I am not asking anyone to do my homework for me, I would like some help in locating what I am missing or what I have incorrect.

I have tried c and f both as double and int. Thanks for your input!

Task: Display table of Celsius temp 0 - 20 and Fahrenheit equivalent

public class CelsiusToFahrenheit
{
	public static void main(String[] args)
	{
		int c = 0;
		int f;

		System.out.println("Celsius   Fahrenheit");
		System.out.println("--------------------");

		while (c <= 20; c ++);						//c = 0 or 1?
		{
		f = 9.0*c/5+32;
		System.out.println("     "  +c+  "     "+f);

		}
	}
	//this is how it is in chpt 5, but doesn't appear to do anything different
	static int f (int c)
		{
			int f;
			f = (9.0/5.0)*c+32;
			return f;
		}
}

The results are below. Where's the rest???

/*
C F
-----------------------
21.0 69.8
Press any key to continue . . .
*/

[collegekid901]

Explain the problem you having. What is the expected results. What are your results

[Kimmyizm]

Display table of Celsius temp 0 - 20 and Fahrenheit equivalent is what I am attempting to do.
The results that I am having are:
C F
-----------------------
21.0 69.8

[GregBrannon]

Where'd you learn to make a while statement like this:

while (c <= 20; c ++);

Check that.

And if you want floating point results, you should use floating point variables.

[collegekid901]

Pretty much what Greg said, fix your while loop and it should work out fine.

[Kimmyizm]

	while (c > 1; c <= 20; c ++)	

Getting 3 errors. Maybe I'll try some sleep and look at it tomorrow. Happy Mother's Day to me, haha.

[Dogstopper]

A while loop should not be a for loop. What happens in your while loop is it gets to while (c > 1; and drops out of the loop, as inside a while loop, that's what a ; means. So then it only executes once. You can fix this one of two ways.

1) Fix the while loop. Use a while loop syntax:

		while (c <= 20) // <-- NO SEMICOLONS		//c = 0 or 1?
		{
		    f = 9.0*c/5+32;
		    System.out.println("     "  +c+  "     "+f);
		    c++;
		}

2) Use a for loop, which requires exactly 2 semicolonsL

		for (c = 1; c <= 20; c ++) 
		{
		    f = 9.0*c/5+32;
		    System.out.println("     "  +c+  "     "+f);

		}

So it looks like you simply do not know your loop structures.
http://coweb.cc.gate...va_Tutorial.pdf

[Kimmyizm]

Problem solved! Finally! Thanks for your help everyone, I "think" I finally know the difference with "while" and "for" use... Feel pretty stupid, but am trying to "get it".

public class CelsiusToFahrenheit
{
	public static void main(String[] args)
	{
		int c = 0;
		int f;

		System.out.println("Celsius   Fahrenheit");
		System.out.println("--------------------");

		//while (c <= 20)
		for (c = 1; c <= 20; c++)
		{
			f = 9*c/5+32;
			//tried f = 9*c/5+32;
			System.out.println("     "  +c+  "     "+f);
		//c++;

		}
	}
}
/*
Celsius   Fahrenheit
--------------------
     1     33
     2     35
     3     37
     4     39
     5     41
     6     42
     7     44
     8     46
     9     48
     10     50
     11     51
     12     53
     13     55
     14     57
     15     59
     16     60
     17     62
     18     64
     19     66
     20     68
Press any key to continue . . .
*/