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Search - "code exercises"
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I tutor people who want to program, I don't ask anything for it, money wise, if they use my house as a learning space I may ask them to bring cookies or a pizza or something but on the whole I do it to help others learn who want to.
Now this in of itself is perfectly fine, I don't get financially screwed over or anything, but...
Fuck me if some students are horrendous!
To the best of my knowledge I've agreed to work with and help seven individuals, four female three male.
One male student never once began the study work and just repeatedly offered excuses and wanted to talk to me about how he'd screwed his life up. I mean that's unfortunate, but I'm not a people person, I don't really feel emotionally engaged with a relative stranger who quite openly admits they got addicted to porn and wasted two years furiously masturbating. Which is WAY more than I needed to know and made me more than a little uncomfortable. Ultimately lack of actually even starting the basic exercises I blocked him and stopped wasting my time.
The second dude I spoke to for exactly 48 hours before he wanted to smash my face in. Now, he was Indian (the geographical India not native American) and this is important, because he was a friend of a friend and I agreed to tutor however he was more interested in telling me how the Brits owed India reparations, which, being Scottish, I felt if anyone was owed reparations first, it's us, which he didn't take kindly too (something about the phrase "we've been fucked, longer and harder than you ever were and we don't demand reparations" didn't endear me any).
But again likewise, he wanted to talk about politics and proving he was a someone "I've been threatened in very real world ways, by some really bad people" didn't impress me, and I demonstrated my disinterest with "and I was set on fire once cos the college kids didn't like me".
He wouldn't practice, was constantly interested in bigging himself up, he was aggressive, confrontational and condescending, so I told him he was a dick, I wasn't interested in helping him and he can help himself. Last I heard he wasn't in the country anymore.
The third guy... Absolute waste of time... We were in the same computer science college class, I went to university and did more, he dossed around and a few years later went into design and found he wanted to program and got in touch. He completes the code schools courses and understandably doesn't quite know what to do next, so he asks a few questions and declares he wants to learn full stack web development. Quickly. I say it isn't easy especially if it's your first real project but if one is determined, it isn't impossible.
This guy was 30 and wanted to retire at 35 and so time was of the essence. I'm up for the challenge, and so because he only knows JavaScript (including prototypes, callbacks and events) I tell him about nodejs and explain that it's a little more tricky but it does mean he can learn all the basis without learning another language.
About six months of sporadic development where I send him exercises and quizzes to try, more often than not he'd answer with "I don't know" after me repeatedly saying "if you don't know, type the program out and study what it does then try to see why!".
The excuses became predicable, couldn't study, playing soccer, couldn't study watching bake off, couldn't study, couldn't study.
Eventually he buys a book on the mean stack and I agree to go through it chapter by chapter with him, and on one particular chapter where I'm trying to help him, he keeps interrupting with "so could I apply for this job?" "What about this job?" And it's getting frustrating cos I'm trying to hold my code and his in my head and come up with a real world analogy to explain a concept and he finally interrupts with "would your company take me on?"
I'm done.
"Do you want the honest unabridged truth?"
"Yes, I'd really like to know what I need to do!"
"You are learning JavaScript, and trying to also learn computer science techniques and terms all at the same time. Frankly, to the industry, you know nothing. A C developer with a PHD was interviewed and upon leaving the office was made a laughing stock of because he seemed to not know the difference between pass by value and pass by reference. You'd be laughed right out the building because as of right now, you know nothing. You don't. Now how you respond to this critique is your choice, you can either admit what I'm saying is true and put some fucking effort into studying cos I'm putting more effort into teaching than you are studying, or you can take what I'm saying as a full on attack, give up and think of me as the bad guy. Your choice, if you are ready to really study, you can text me in the morning for now I'm going to bed."
The next day I got a text "I was thinking about what you said and... I think I'm not going to bother with this full stack stuff it's just too hard, thought you should know."23 -
I feel the need to take a different approach to this week's rant. I think someone needs to defend teachers, for a number of reasons. Obviously this is probably out of place on devRant but it is a kind of rant against those who think they know everything and have nothing to learn.
1) Teachers are not industry specialists. They do not spend their lives keeping on top of the latest framework or project management methodology or code management tool. They are educators and that brings its own set of out of hours challenges and training exercises.
2) They have a course to teach and have probably used the same one for quite some time. Years probably. They (should) teach the fundamentals of programming not a particular language or syntax or quirk. Those fundamentals don't really change. Logic, problem solving, precision, structures, etc.
3) They need to provide a course which will cater for different skill levels. There are always class members who are bored because it's too easy and others who struggle in any subject.
4) Teaching is like any profession - there are really, really good ones, OK ones and there are shit ones.
5) They have probably never developed a detailed project or solution in their lives. They don't know the pitfalls and challenges that teams face in this kind of environment. Should they - maybe. But the probably don't.
I think that's all... I'm not a teacher (although I did fancy the idea at a time) but just feel they get a rough ride sometimes (particularly on here).4 -
I've found sites like Udemy/Khanacademy/Codecademy/Brilliant/Edx to be very useful — possibly more useful than expensive education.
But they still need:
1. Better correction/update mechanisms. Human teachers make mistakes and material gets outdated, and while online teachers are rectified faster than classroom teachers, the procedure is still not optimal. Knowledge should be a bit more like a verified wiki.
2. Some have great interactive coding environments, some have great videos, some have awesome texts, some have helpful communities. None has it all. In the end, I don't want to learn a new language by writing code in my browser. It could all be integrated/synced to the point where IDEs have plugins which are synced to online videos, with tests and exercises built in, up to a social network where you could send snippets for review and add reviews to other people's code.
3. Accreditation. Some platforms offer this against payment, but I think those platforms often feel very old school (pun intended), with fixed schedules, marks and enrollments. Self paced is a must.
4. Depth is important. Current online courses are often a bit introductory. We need more advanced courses about algorithms, theoretical computer science, code design, relational algebra, category theory, etc. I get that it's about supply/demand, but we will eventually need to have those topics covered.
I do believe that for CS, full online education will eventually win from the classroom — it's still in its infancy, but has more potential to grow into correct, modern education.10 -
I have teens in my classroom who want elite hacker status but complain about doing programming exercises outside of class. >.<
I explain to them that learning to code takes a lot of practice and can be frustrating at first. Some still went to the dean complaining that my class is tough. I work at a private school where open communication is encouraged and social justice is a thing.
So, I'm over here like "How do I reach these kids?"
I'm optimistic and I try different approaches to teaching and learning. Some stuff has worked. A lot haven't.
I figure I'd ask here: Does anyone have a suggestion for any creative programming exercises/projects that are beginner-friendly, legal, and hacker-ish? (I teach intro to Java.)22 -
This guy I know applied for a senior position at a company I used to do freelance for. He walked in while I was spending the day there to work on our project.
We used to work in the same company and I knew that this guy doesn't know shit. He's the type that would foam in the mouth while bullshitting his way through any sort of discussion.
Anyway, they had him set up on a computer a few tables from me to complete some coding exercises--real simple stuff just to see how he would approach some common problems.
There was no time limit set but the tests shouldn't have taken him more than an hour.
He sat there for SIX HOURS.
At this point, I went out for a smoke, came back 5 minutes later, and found that he wasn't there anymore.
Apparently, he just stood up and said, "Nope, can't do it" and then left the building without a word to anybody else.
We never heard of him again.
Oh, and the tests? Not a single line of code written XD5 -
I have this great professor who taught us how to be logical human beings (not that I learned much of that haha). He introduced us to web dev. He started with the basic html shit, then proceed with php and sql. His lectures were awesome. He'll then proceed with code exercises. And we'll have mini 'codefights' in his classes! yey! He taught us that in programming, it is much more important to practice logic than master a single language(no hate please). I learned to love programming through his passion. :) I learned to program in his class, now I hope never to stop learning. :D8
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It's my first 'rant' so be kind :P
When I started my studies a already knew some very basic programming stuff. I went to the exercises with another dude I met. We always joked about the tasks we had to do and did other things while the others tried to fix bugs in their code. After the semester ended he asked me whether I want to work part time at his mother's office. I went to the interview which was weird because I have never been to one before but got the job straight away. I'm in my fourth year of working there because the team is awesome.5 -
Dumbest experience.
Talked to recruiter, they praised I know ruby, said I needed to do a code test in ruby.
I was given 1 hour to complete 5, exercises in a codefight like thing.
1 exercise had C as the only lang option.
2 more had C and Python.
The last two has ruby too, they were permutation exercises that never completed within the time restriction (that was probably on me, but they did complete on my local ¯\_(ツ)_/¯ )
I told them about all this, I failed, no second chances, no explanation, no nothing.2 -
Told a teacher I finished a week worth of exercises, and asked for the next one
"This code is not yours. It's too clean, redo everything"
... what, is it wk64 already ?3 -
A funny story I just remember while my code is compiling :
Back in high school, in Math, we were taught how algorithm works, and we made some exercises with practical examples.
I didn't know anything about it back then, so was curious. Was pretty fun, but one day, my teacher said that a IF is a loop. I said "no, this is a test" but she keeps saying that it was a loop, ignoring me (I dunno if she actually heard me) and no one actually noticed it as she repeated it several times (while I was saying that it's not). I just gave up trying to say it's wrong.8 -
I'm diving back into c++ for a nice opportunity (if that happens) but Jeez I straight up suck balls with exercises... It's depressing, like I can't even solve a very simple problem, I can code from memory pretty much all I learned so far, but when I comes to applying it to a real problem, I become super dumb and don't know what I'm doing anymore...
I've set myself a goal tho, I'll keep doing minimum 5 exercises / days and I have to finish atleast 3 without looking at the solution to understand
I hope this will make me a little bit more interview ready if that day ever comes..4 -
So I'm sitting there in Android practice. I already have some experience with Android, so the exercises they make us do are quite easy for me. Nevertheless I start doing the exercises, when the teacher tells us that whoever implemented last week's exercise well gets a + point (and a pat on the back).
Implementing it well only means that you used a Model class for your Model (basic stuff). I raise my hand, hoping to get that sweet ++.
Teacher comes over. My laptop dies. Can't boot for shit. All the while I'm losing my shit. Then I remember that I have the code up on Github (I started using git for these small projects, to practice it). I showed the teacher my code on Github and the app on my phone (I debug from my phone because there is no way I can run an emulator on my laptop). I got the ++ and the teacher was delighted that someone was using Git, even though they didn't *have to*.
I definitely learned my lesson there. I'll be using Github for all of the small shitty projects we have from now on. My Github repo might look like garbage, but I will have peace of mind.6 -
I learned to program with Game Maker, downloading examples and changing variables to see what they did. After that I wanted to make websites so I followed tutorials and just see what happened if I changed variables and functions. Then came High School where we had exercises with Java and just experimented with the possibilities.
Then in Uni I learned about OOP and Functional which opened even more worlds. After a class on design patterns and designing the architecture of a system, programming was never the same.
And even until this day, I haven't stopped learning better ways to code. Oh how I long for those days where everything is new and how I can build a hello world application and be truly excited about it! That is how I learned to program and why I won't stop anytime soon. 😁 -
I haven't coded anything for months now, maybe 1.5 to 2 years even, because I was struggling with depression and unresolved issues. I'm still not out of it, and I'm not seeing anyone for now because of quarantine, but I've been taking antidepressants during the last months (prescribed by a doctor) and they're beginning to have a good effect. I'm feeling better by the day, and I'm looking forward to seeing a professional and getting better without the medication after the end of the coronacrisis (which isn't something I would have thought sometime ago, so that's encouraging).
Anyway, today I took my laptop and started coding again, and I really liked it, but it really felt like my mind was fucking rusted after all this time. It took me like 3 hours to write 60 limes of code. I know that by keeping coding a bit everyday I will find my old skills again, but I was wondering if you had any tip to ease the start, like doing code exercises, or trying to make a simple project. I'll take any tip to get back on the train again, as quickly and smoothly as possible.
Second question : please comfort me and tell me I'm not the only one who is suffering or has suffered from rusted mind syndrome.4 -
So here is my take on a shitty teacher.
I once had a microcontroller teacher, who tried to teach a class of non programmers how to code, from a broken compendium. While he was teaching he would correct errors that he found. Most of the classes would be pure theory on C and no exercises.
Needles to say after the first two semesters none of the students could program, and over half of the class had left the school. -
Damn, since my last rant where I was complaining about me having big troubles coding stuff when asked by an exercise or given instructions, I feel like I've made huge progress now, by sticking a bit to my "at least 5 exercises a day" routine, now as soon as I code, it comes to me more and more naturally.
I'm so glad I can see the practice really paying off, even thanks to a simple function working great at the first compile makes me feel warm inside even tho it ain't gonna last long.2 -
Today is thursday. Oh no.
At thursdays I have a 8h30-19 schedule (I have 1h30' of free time to go home and cry after I finish a class at 15h30 though) and there's this one class I DREAD. It's a 2h class at 17h and it's an exercise class. This wouldn't be so bad it I actually understood the code behind the exercises, because they don't teach us code in the theory classes (btw it's C. I hate that language because of all this). The teacher pretty much tells us "do this exercise", waits like 10' and then starts to (try to) explain what we're supposed to do. Oh my god.
The other day he was like "write "exec ( ... "text" ... )", compile and execute". It didn't work. Of course it didn't why would it? I was switching around between terminal, manual and text editor, to no avail. In the end he explained but I don't think I got it.
Every time I think about this class I die a little inside and start to become somewhat anxious to be honest. The theory is not that that hard, the practice part is what is killing me (I have test in 2w but I'm just gonna start studying earlier so I can go watch this match LoL).
Does someone know a good book (preferably online, if possible) or a good website on C? I really need to read that, that language is killing me.
Bonus: the other day I had to do a homework that was to be delivered. We had to write a program that read the program and its arguments like this:
./program_name
numArgs
arg1
arg2
etc
I wrote the code, had some bumps in the way, asked a colleague for help because we needed to have a custom function made that was to be done in the class but that I couldn't make because of the reasons above. Then it came the time to test. My VM broke (I think I'm gonna format my PC to try to fix that. Have installed some other versions of the VM but the installations fails or the machine doesn't start) so I sent it to said colleague to test. She said it did OK and so I sent the work to this website we have to send our works to.
"2 errors".
What? What happened? She said it worked just fine.
Looked at my code, couldn't see anything wrong.
Asked the same colleague for help.
Turns out I missed a space. A SPACE. I don't think I've ever felt so frustrated in my life. A presentation error in Java is a good thing, at least we know the program works fine, it's just the output that's wrongly formatted. But C? Nope, errors all around, oh my god. I'm still mad about it.
And I owe her a chocolate.1 -
- Promote source control usage especially in group projects
- Teach clean code principles
- Push for commented code in exercises -
I'm studying atm and I survived Haskell, SKI, ... now, in the second semester we started with Python (yeay ♡) and Java (that's fine).
One of the first exercises is about installing Jython ('cause it's good, right? /sarcasm off), using the lecturer's module and write some code for it. It's about painting some shitty graphics *gasp*...
I use PyCharm (not really necessary for these crappy exercises) and programming on Windows and/or Linux.
Downloaded Jython, installed it, set it as interpreter - works fine (win10, pycharm).
Some students got weird errors using linux - for me it's the same but meh Idc.
Today I tried using Jython on my notebook, too (win10, pycharm). Downloaded it from the Jython Project website. Can't update pip, can't run modules - error is about fckin charsets...
Some other student figured out - wrong version of Jython. The newer version has some bug fixes.
2.7.1 is the one and only - the download section of their website offers 2.7.0 as latest release...
So - how to know there is a version 2.7.1?
#1 version control website = Wikipedia
So... there is a blog, guy's writing about this release - this installer is hosted at maven central. Yeay. Obvious. Thanks.
Can't describe such stupidity - maybe it's the user again 😂 -
Now solving Java exercises on exercism.io. Nice twist of write-code-from-testcases.
That's something I haven't seen before... -
I honestly have come a long way. But I still have these moments when I just lose confidence In myself, and while grieving it can be worse/more frequent.
I’m being taught some networking programming from this person I befriended and it’s going wonderfully! But I don’t know how much I’m taking in. I don’t know if I’ll be able to completely understand while I’m using what I’m learning, but I guess part of the learning is by using and doing. But what if I need to change it up for a different purpose but I don’t know how?
What if I’m not programming enough? When working on this project/learning the stuff from my new teacher friend to actually make some of the stuff I usually work on that for 30 mins to an hour and a half maybe even 2. Relax, do some college, play games, then later I’ll try to work through a few exercises of my C# WinForms book.
And before you say it I’m not balancing too much on my head. I’ve learned GUI’s before with Python I’m just reflecting that to C# and it’s easy and I’m always in a separate headspace for networking. But it all just doesn’t feel like enough?
It also doesn’t help that i don’t feel like I’m doing anything special that I can boost my confidence with. Usually in a project I won’t feel like I’m doing anything until a cool or special feature is made and I know that’s bad I hate it but I can’t avoid it and I want to feel good even when nothing completely out of this world is made that day.
And I’ve definitely come a long way I’m proud of myself but I just hate getting these feels. And It happens a bit when I’m learning because I’m afraid I’m not learning and I’m gonna keep copy pasting the same code snippets for different projects and I don’t want that I want to be able to fucking edit and change it or make a completely new one of whatever it is but my design but I guess that takes experience with it first.
Thanks for coming to my TED talk -
0. Do all practice in Clean Code
1. Do almost all exercises in Eloquent Javascript
2. Learn Python
3. Be proud of the work done in my current job project (I've just started)
4. Read own code from <wk100 and say: "omg I'm a much better programmer today!"
5. Implement 32 hour days to have time to read all those books, listen all those podcasts, code all those katas... -
I just started helping a friend write their Java exercises that they have to do over the summer for AP Computer Science. The following code is what I inherited from them, which is a person who just finished learning Java for a year in another class. I am without words.
http://collabedit.com/gxd4t2 -
JS isnt the problem I have. I have realized. My problem is my lack of knowledge of the language which is not really a problem because I am new but its more the side I dont know how to write code that will do it. and lets say I do I get so fucking confident and it doesnt work and I think its some small error I made but no its just how I write it and it wont work and that gets me so down because when I ask for help my code 100% of the time gets rewritten. can I just not do simple shit on my own? and the problems Ive been coming across are just small projects to get better like "Create a function that outputs the most common item in an array" or "Write a simple JavaScript program to join all elements of the following array into a string" or literally any of the projects on this site: https://w3resource.com/javascript-e...
I feel so embarrassed because these are simple and I cant even do majority of them in langauges I'm better and more experienced with (python) I can think out a problem I cant convert that to code. algorithms in general I cant do as well and Ive never done any "big" or "serious" projects so I dont know what I have to show for the last 3 years of my life.10 -
I feel compelled to figure out how to use software in a gaming setting to teach skills like CS and Math. But do it in a way that is fun and not feeling like a "math game".
I want to spend more time learning about algorithms, architectures, design approaches, etc. Writing such a game would force me to understand what I present in a very intimate way.
I can see a way to create algos in game using very visual ways. Then allowing someone to make superstructures combining those algos to solve tasks.
I was inspired by how some algos require data to be sorted a certain way before starting. As the algo as a side effect resorts the data to know when it has completed. I realized if an algo is generic enough it can be combined just like functions or objects.
I also want to learn math better, especially in conjunction with code. So making a platform for learning these would be a lot of fun. I would definitely want both visual and textual interfaces to the code. I have to imagine a real programmer being frustrated with a visual interface unless it was really compelling.
I find it interesting that a lot of algos are represented visually when trying to show how it works. I realize some probably cannot be visualized so easy though.
I also want to use software like this to teach someone to think more deliberately and help people be more disciplined in their thinking. I know I could use this.
I have a secret goal of being able to use such software to help someone become a math/programming wizard. I don't know if this is achievable, but having exercises that help solidify root concepts in a fun way would be really useful IMO. -
Anyone know of tutorials which use...unconventional project premises? Usually you see To-do apps, sample blogs, and other such generic offerings. Not that those are bad, but I'm interested in finding more outlandish, unconventional examples. Like, say, developing a mock GUI for a spacefaring vessel.
I'm personally interested in examples pertaining to React, VueJS, and Laravel, but if it fits the outlandish and unusual criteria I'd love to see it all the same!3 -
I was put into pair programming for writing code in BASIC in my 5th grade. I did all the exercises while my pair simply watched. It was simply natural to me, and a bug in code helped me to print my name in a infinite loop. Amazed with what computers can do, and my story with computer and software development started there.
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wish AIs were good at rust, borrowing rules, and async 😫
is it possible to have a impl of async &mut self on something that's gonna thread and update its own data via Arc Mutex or whatever or not
stop making syntax errors
guide pls
nobody uses rust, I swear. or at least they just do basic bitch "beginner" apps. please. get with the times and actually do something meaningful that's not picture perfect theoretical exercises. how come no one's RNG tested every feature against every other feature? where's your chaos monkey. the world is chaos! get with the times!
it would be nice if I stick this on the instance as a method but it _might actually never work_ if I try that so I don't wanna spend 3 days wrangling with the code to figure that out when I have a perfectly good dangling independent helper function in a random package here. gosh darnit
also apparently the only way to get something out of a Arc Murex is to clone it. but the API / usability of the thing would be exactly the same whether it was wrapped in Arc Murex or not. so it's like. if it was in Arc Mutex and you wanna use it in other parts of your app that aren't using multithreading in any way, are you just changing all the function signatures to Arc Mutex or are you cloning to get it back out? uegh I don't even. what if I mutex lock and just put that in the signatures (can I even? because I've tried using weird intermediary objects as part of signatures and then I get in trouble there too cuz arbitrarily the answer is "no" because some generic system limitation)? why all of this
May as well learn hieroglyphics but with French/English grammar exception rules on the side. yo dawg we heard you hate human languages with all their exceptions so we made programming languages the same way46 -
Great practice/skill sharpening idea for my fellow mad dogs that like to get down in multiple languages/syntaxes:
Pick something simple that won't cause too much stress, but will make you sweat a little bit and put up a good fight, ha!!!
For example, I picked the classic "Caesars Cipher" and picked 5 languages to create it in! I picked Dart, Java, Python, CPP, and C. Each version does the same thing:
1. Asks for a message
2. Runs the logic
3. Prints the message cipher.
4. To decrypt, you just run the same program again and enter the cipher text at the message input prompt. The message gets deciphered using the same logic an shows up as the original text.
The kicker:
Only dox/books allowed for reference. Otherwise it wouldn't push you to get better!!!
Python, C, and CPP were EASY, even with me never having used C before. I am great at using Dart, and that one really challenged me for some reason, but I finally got it. The previous 3 langs took less than 40 lines of code each (with Python being only 18 I believe). Dart actually took somewhere around 50, and Java took about 371784784. (Much love to Java though for real!)
Kinda boring as shit, but I gotta tell you it felt fuckin GREAT to look at all 5 of those programs after completing them, no matter how barbaric... especially when you complete 1 or 2 in a language you've never used or maybe felt really challenged by. Simple exercises that hold a lot of important, relatable logic no matter the subject is our lifeblood!!!9 -
Leverage online code platforms for exercises/assesments. Something like qualified.io for educators.
Teach algorithms with code challenges with sample test cases. Builds confidence, makes learning fun, and gives immediate feedback.