Question

Write a c# program in Microsoft visual studio to determine if the following numbers are even or not.

Create an app that will read integers from an input file name Number.txt that will consist of one integer.

Determine which numbers are even and which are odd. Write the even numbers to a file named Even.txt and the odd numbers to a file named Odd.txt.

Number.txt

20
39
45
12
31
62
10
11
21
73
14
42
55
86
109
200
13
25
38
64

Answer 1

Here is code:

using System;
using System.IO;

namespace ConsoleApp // Project name
{
class Program
{

static void Main(string[] args)
{
StreamWriter swEven = new StreamWriter("Even.txt", false);
StreamWriter swOdd = new StreamWriter("Odd.txt", false);
using (StreamReader sr = new StreamReader("Number.txt"))
{
string line;
// Read and display lines from the file until
// the end of the file is reached.
while ((line = sr.ReadLine()) != null)
{
if (int.Parse(line) % 2 == 0)
{
swEven.WriteLine(line);
}
else
{
swOdd.WriteLine(line);
}
}
}
Console.WriteLine("Done");
swEven.Close();
swOdd.Close();
Console.ReadKey();
}

}
}

Number.txt:

20
39
45
12
31
62
10
11
21
73
14
42
55
86
109
200
13
25
38
64

Even.txt:

20
12
62
10
14
42
86
200
38
64

Odd.txt:

39
45
31
11
21
73
55
109
13
25