unassigned variable

[akaballa]

Hi,

Im new at C# programming....just practicing some programming concepts. I was working on a array program...when I encountered this error message: "Use of unassgined local variable 'avg'". I had already declared this variable previously. So Im not sure how to fix this error.

using System;

namespace ConsoleApplication1
{
class Array2
{
public static void Main()
{
int[] nums = new int[5];

nums[0] = 69;
nums[1] = 95;
nums[2] = 76;
nums[3] = 85;
nums[4] = 100;

int avg;

for (int i = 0; i < 5; i++)
{
avg = nums;
}

avg = avg / 10;//here is where the problem occurs

Console.WriteLine("Average: {0}", avg);
}
}
}

 

[jmeckley]

in your example avg will only ever equal 10 (100/10). set a break point on [tt]int[] nums[/tt] and step through your code to make sure your looping through the for loop.

If you want to calculate the average of the array change your loop to

int[] nums = new int[] {96, 59, 76, 85, 100 };
int avg = 0;
int cnt = nums.Length;
for(int i = 0; i < cnt; i++)
{
   avg +=nums[i];
}
Console.WriteLine("Average: {0}", (avg / cnt));
Console.WriteLine("Press any key to exit.");
Console.ReadKey();

Jason Meckley
Programmer
Specialty Bakers, Inc.

 

[sunila7]

Try this:

using System;

namespace ConsoleApplication1
{
    class Array2
    {
        public static void Main()
        {
            int[] nums = new int[5];

            nums[0] = 69;
            nums[1] = 95;
            nums[2] = 76;
            nums[3] = 85;
            nums[4] = 100;

            int avg = 0;

            for (int i = 0; i < 5; i++)
            {
                avg = nums[i];
            }

            avg = avg / 10;//here is where the problem occurs

            Console.WriteLine("Average: {0}", avg);
        }
    }
}

Sunil

 

[akaballa]

Thx guys...both ways work!!