student help

Cassandra Boriboune

I know that I shouldn't be asking for help with homework. But heres the cituation, I am taking a C# for .net course at a local community college they have it online and only for 8 weeks the instructor gives 4 chapters of reading and 4 assignments due each week. this is not an easy language to learn. i am very new to programming and need help so i don't fail this course. Here is my assignment. I don't want the answer because I do want to learn I just need some guidance. Thanks

Write a function that accepts as input an array of integers, and outputs, in reversed

order, only its elements having odd values. Your Main function should prompt for user input of

those arrays – one at a time, until receiving the input that contains no odd values

7 Replies

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Sam Hobbs15y ago
Okay, so for separate lines use Readline instead of Read. Also the data will be strings so you need to convert each of them from a string to a number (an int). There are many ways to convert a string to a number but I suggest Int32.TryParse. So I suggest writing code that reads the numbers in, converts each string to an int, then write code to write the numbers out for testing purposes. It is very easy to access an array in reverse sequence, and you might do that when you write the data out. This way you can test what you have up to that point.

Questions?
Mahesh Chand15y ago
You're absolutely fine to ask this kind of questions as long as you are willing to learn and do your work.
Mahesh Chand15y ago
Are you allowed to use the Array class? It has a Reverse method. Here is a tutorial on arrays.
http://www.c-sharpcorner.com/uploadfile/mahesh/workingwitharrays11232005064036am/workingwitharrays.aspx

Here is pseudo code:

int[] answer = new int[5];
for (int i = 0; i < answer.Length; i++)
{
answer[i] = Console.Read();
}

Array oddArray = new Array(); // dynamic no fixed length
for (int i = 0; i < answer.Length; i++)
{
int val = answer[i] ;
if (val%2 == 0) else oddArray.Add(val);
}

oddArray.Reverse();

// Now print odd array
Cassandra Boriboune15y ago
I agree separate lines would be easier
Sam Hobbs15y ago
Console.Read() will read one character at a time; in other words, each time it is called, it will return one digit or space or letter or whatever.

Do you want the program to read the numbers from one line or from 5 lines? In other words, which one of the following two ways do you want? I think that separate lines would be easier.

1 2 3 4 5

1
2
3
4
5
Cassandra Boriboune15y ago
It is a console application in Visual C# 2010 Express. I get the idea what I need to do I just don't know how to put it all together. I Started out with:
static void Main (int[] args)
{
Console.WriteLine("Enter 5 numbers of any length:");
int[] answer = new int[5];
for (int i = 0; i < answer.Length; i++)
{
answer[i] = Console.Read();
}
And I know that I should use reverse method to reverse the order of the input. And use an if statement like (x%2==0) to find the even numbers and try to pull them out. Im not sure how to get it to reprint what the user put in either.
Sam Hobbs15y ago
So go ahead and do as much as you can. It is totally appropraite to help you in the manner that other instructors would. It is easier for someone else to solve the problem for you and give you the answer, but that does not help you as much as if someone spends the time to help you understand so you can figure it out yourself now and in the future. So do as much as you can. You can write "pseudocode" in the sense of something that is not valid code that is however close to real code. Then if you need help converting that to real code then someone can help you with that; at least using hints.

Do you know what type of program it is supposed to be or that you intend to write? Is it a console program, a Windows Forms application, an online ASP application or a Silverlight program or something else?