You Gotta Look Sharp: Redoing Weekly Challenge 135 in Microsoft's Preferred Language
You gotta look sharp
You gotta look sharp
And you gotta have no illusions
Just keep going your way looking over your shoulder
— Joe Jackson, “Look Sharp”
I’ve written in C# before. I have a command-line “Make this my Background” program, which I’m considering a redo so I can try to add “Make this background for every desktop” as an option.
But it’s been a while, and I never really learned a lot of C#. Just enough for that task, really.
The interesting part about learning a new language is figuring out what’s harder and what’s easier. I’m very used to Arrays that have Linked List methods. I would prefer to integers.push(-123) or the like, but I’m not seeing that it’s the way in C#. There’s also a lot of overhead to this that you just don’t see in my Perl solutions.
And types. Man oh man, types. I’ve been looking at Corinna a little, and seeing in that context how they work. I’m making a Line object out of Point objects, I better be sure I have Point objects and not just scalars. But there’s hiccups when I was playing around (I dont’t think any hit the code below) between when I would want an int and when I’d want a double. I like having a thing that’s that thing whether it holds 4 or 444,444,444, and only changes when things get really big or really small. I know that, between the two, it’s details the computer can sweat instead of me, and having to sweat unneccessary details seems counterproductive, y’know?
But I could see working with this.
Show Me The Code
using System;
using System.Collections.Generic;
using System.Linq;
namespace MyApp // Note: actual namespace depends on the project name.
{
public class Program
{
public static void Main(string[] args)
{
int[] integers = new int[4];
integers[0] = 1234567;
integers[1] = -123;
integers[2] = 1;
integers[3] = 10;
for (int i = 0; i < integers.Length; i++)
{
int j = integers[i];
MiddleDigits(j);
}
}
static void MiddleDigits(int i)
{
Console.WriteLine("");
Console.WriteLine("Input: $n = {0}", i);
int absi = Math.Abs(i);
if (absi % 2 == 0)
{
Console.WriteLine("Output: even number of digits");
return;
}
if (absi < 100)
{
Console.WriteLine("Output: too short");
return;
}
while (absi > 999)
{
string stri = absi.ToString();
int strl = stri.Length - 1;
stri = stri.Remove(strl, 1);
stri = stri.Remove(0, 1);
absi = Int32.Parse(stri);
}
Console.WriteLine("Output: {0}", absi);
return;
}
}
}
Input: $n = 1234567
Output: 345
Input: $n = -123
Output: 123
Input: $n = 1
Output: too short
Input: $n = 10
Output: even number of digits