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sources/tech/20220205 Create an app with this Arnold Schwarzenegger-themed programming language.md
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250 lines
6.2 KiB
Markdown
[#]: subject: "Create an app with this Arnold Schwarzenegger-themed programming language"
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[#]: via: "https://opensource.com/article/22/2/arnoldc-create-app"
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[#]: author: "Jessica Cherry https://opensource.com/users/cherrybomb"
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[#]: collector: "lujun9972"
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[#]: translator: " "
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[#]: reviewer: " "
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[#]: publisher: " "
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[#]: url: " "
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Create an app with this Arnold Schwarzenegger-themed programming language
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======
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Build your Java muscle while having some fun with ArnoldC, an open
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source programming language.
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![gray scale photo of dumbbell weights for strength training][1]
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Have you ever wished programming were more like an action movie? If you answered yes, then I have the language for you.
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While wandering the internet to find the most obscure and fun open source languages, I came across ArnoldC. ArnoldC is an imperative programming language where the basic keywords are replaced with quotes from various Arnold Schwarzenegger movies.
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For this tutorial, I'll be using a Debian-based operating system with Terminator and the Vim editor. While you follow this tutorial, I would highly recommend rewatching some older Schwarzenegger films just for fun!
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### Install ArnoldC
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ArnoldC is hosted in [GitHub][2]. Before starting, I suggest creating a directory to hold your new project so it won't get lost. Below are my commands to get ArnoldC on your computer.
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```
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$ mkdir arnoldc
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$ cd arnoldc/
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/arnoldc$ wget <http://lhartikk.github.io/ArnoldC.jar>
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\--2022-01-16 14:11:18-- <http://lhartikk.github.io/ArnoldC.jar>
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Resolving lhartikk.github.io (lhartikk.github.io)... \
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185.199.108.153, 185.199.109.153, 185.199.110.153, ...
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Connecting to lhartikk.github.io (lhartikk.github.io)\
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|185.199.108.153|:80... connected.
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HTTP request sent, awaiting response... 200 OK
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Length: 12958233 (12M) [application/java-archive]
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Saving to: ‘ArnoldC.jar’
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ArnoldC.jar 100%
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```
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### Short keyword overview
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First, I'll explain some of the keywords you'll need to build an app. Keep in mind that all of these keywords need to be in all caps when writing your application.
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Printing strings or variables: `TALK TO THE HAND`
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Example: `TALK TO THE HAND "hello there"`
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Creating a variable: `GET TO THE CHOPPER`
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Example: `GET TO THE CHOPPER var1`
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Setting the variable: `HERE IS MY INVITATION`
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Example (in pattern format):
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```
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GET TO THE CHOPPER var1
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HERE IS MY INVITATION value1
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```
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Once you've finished with the assigned variable, the next line is `ENOUGH TALK`.
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False: `I LIED`
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True: `NO PROBLEMO`
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Return: `I'LL BE BACK`
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These are some of my favorite keywords from the complete list, but you can always consult the ArnoldC wiki for more.
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### Hello world
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I'll start with a small "hello world" app to show the ArnoldC language in use.
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First, use the `echo` command to output the string "hello world" into a hello file:
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```
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$echo -e "IT'S SHOWTIME\nTALK TO THE HAND \"hello world\
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"\nYOU HAVE BEEN TERMINATED" > hello.arnoldc
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```
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Next, use `java -jar` to create the app using ArnoldC: `$java -jar ArnoldC.jar hello.arnoldc`
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Then use the java command to run the program: `$java hello`
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Here's the output:
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```
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hello world
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```
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If you followed these instructions, congratulations on your first under-3-minute app in a completely frivolous language.
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### Let's count
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In this next example, I'll have my app count to 20. The odd patterning makes this program pretty interesting.
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First, create the file using Vim so you can just start writing the app: `arnoldc$ vi count.arnoldc`
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Create the `begin main` with `IT'S SHOWTIME`.
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Next, set up the declared variable: `HEY CHRISTMAS TREE isLessThan20`
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Then, set the initial value of the variable to true, making that required: `YOU SET US UP @NO PROBLEMO`
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Repeat these steps with the variable n and make the first set value 0:
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```
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HEY CHRISTMAS TREE n
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YOU SET US UP 0
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```
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From here, move into a while loop with the first variable: `STICK AROUND isLessThan20`
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Assign the variable to look at: `GET TO THE CHOPPER n`
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Then set the value to plus one:
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```
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HERE IS MY INVITATION n
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GET UP 1
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```
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Moving on to ending the assigned variable: `ENOUGH TALK`
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Print the number: `TALK TO THE HAND n`
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Look at the assigned variable again, then set the variable to 20:
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```
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GET TO THE CHOPPER isLessThan20
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HERE IS MY INVITATION 20
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```
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Check to see if the number is less than 20: `LET OFF SOME STEAM BENNET n`
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Moving on to ending the assigned variable, end the while loop, then terminate the program:
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```
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ENOUGH TALK
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CHILL
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YOU HAVE BEEN TERMINATED
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```
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In the end, you should have this:
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```
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IT'S SHOWTIME
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HEY CHRISTMAS TREE isLessThan20
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YOU SET US UP @NO PROBLEMO
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HEY CHRISTMAS TREE n
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YOU SET US UP 0
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STICK AROUND isLessThan20
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GET TO THE CHOPPER n
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HERE IS MY INVITATION n
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GET UP 1
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ENOUGH TALK
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TALK TO THE HAND n
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GET TO THE CHOPPER isLessThan20
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HERE IS MY INVITATION 20
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LET OFF SOME STEAM BENNET n
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ENOUGH TALK
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CHILL
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YOU HAVE BEEN TERMINATED
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```
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Now you just need to set the jar package up to run: `/arnoldc$ java -jar ArnoldC.jar count.arnoldc`
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Then run your code:
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```
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/arnoldc$ java count
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1
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2
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3
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4
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5
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6
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7
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8
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9
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10
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11
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12
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13
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14
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15
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16
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17
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18
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19
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20
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```
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If you attempted this tutorial, congratulations again! You now have a small counter.
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### Afterthoughts
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This just-for-fun open source language is great for general hilarity, but it helps if you know a small amount of Java-based languages. I don't, so it took a bit more time for me to figure out how to use the language. At least I learned something while having fun! I hope you enjoy experimenting with ArnoldC and making something that's amusing to you.
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--------------------------------------------------------------------------------
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via: https://opensource.com/article/22/2/arnoldc-create-app
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作者：[Jessica Cherry][a]
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选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://opensource.com/users/cherrybomb
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[b]: https://github.com/lujun9972
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[1]: https://opensource.com/sites/default/files/styles/image-full-size/public/lead-images/luis-reyes-mtorq9gffog-unsplash.jpg?itok=pnfxHBsU (gray scale photo of dumbbell weights for strength training)
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[2]: https://github.com/lhartikk/ArnoldC
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