My dumb CEO just hired an even dumber CTO. The new CTO asked me the following questions...

1. What is GitHub?

2. What is JSON?

3. What’s an array?

4. What is Get and what is Post?

5. When an iPhone is offline, can it call an API on our server to tell us it’s offline?

6. I know you’ve spent 11 month the writing this backend in PHP but can you change it to Java now?
Me: Why?
Dumb CTO: Because it’s better.
Me: How?
Dumb CTO: because it is.

7. I know you’ve started to rewrite this codebase I Java but can you convert it to Node.JS now?
Me: Why?
Dumb CTO: Because Facebook uses it.

8. What is MySQL? Why aren’t you using a database instead?

9. What does NULL mean?

Somehow, I doubt that asshole is remotely qualified for the job.

Fakin shyt for brains.

Good Morning!, its time for practiseSafeHex's most incompetent co-worker!

Todays contestant is a very special one.

*sitcom audience: WHY?*

Glad you asked, you see if you were to look at his linkedin profile, you would see a job title unlike any you've seen before.

*sitcom audience oooooooohhhhhh*

were not talking software developer, engineer, tech lead, designer, CTO, CEO or anything like that, No No our new entrant "G" surpasses all of those with the title ..... "Software extraordinaire".

*sitcom audience laughs hysterically*

I KNOW!, wtf does that even mean! as a previous dev-ranter pointed out does this mean he IS quality code? I'd say he's more like a trash can ... where his code belongs

*ba dum tsssss*

Ok ok, lets get on with the show, heres some reasons why "G" is on the show:

One of G's tasks was to build an analytics gathering library for iOS, similar to google analytics where you track pages and events (we couldn't use google's). G was SO good at this job he implemented 2 features we didn't even ask for:

- If the library was unable to load its config file (for any reason) it would throw an uncatchable system integrity error, crashing the app.
- If anything was passed into any of the functions that wasn't expected (null, empty array etc.) it would crash the app as it was "more efficient" to not do any sanity checks inside the library.

This caused a lot of issues as some of the data needed to come from the clients server. The day we launched the app, within the first 3 hours we had over 40k crash logs and a VERY angry client.

Now, what makes this story important is not the bugs themselves, come on how many times have we all done something stupid? No the issue here was G defended all of this as the right thing to do!

.. and no he wasn't stoned or drunk!

G claimed if he couldn't get the right settings / params he wouldn't be able to track the event and then our CEO wouldn't have our usage data. To which I replied:

"So your solution was to not give the client an app instead? ... which also doesn't give the CEO his data".

He got very angry and asked me "what would you do then?". I offered a solution something like why not have a default tag for "error" or "unknown" where if theres an issue, we send up whatever we have, plus the file name and store it somewhere else. I was told I was being ridiculous as it wasn't built to track anything like that and that would never work ... his solution? ... pull the library out of the app and forget it.

... once again giving everyone no data.

G later moved onto another cross-platform style project. Backend team were particularly unhappy as they got no spec of what needed to be done. All they knew was it was a single endpoint dealing with very complex model. There was no Java classes, super classes, abstract classes or even interfaces, just this huge chunk of mocked data. So myself and the lead sat down with him, and asked where the interfaces for the backend where, or designs / architecture for them etc.

His response, to this day frightens me ... not makes me angry, not bewilders me ... scares the living shit out of me that people like this exist in the world and have successful careers.

G: "hhhmmm, I know how to build an interface, but i've never understood them ... Like lets say I have an interface, what now? how does that help me in any way? I can't physically use it, does it not just use up time building it for no reason?"

us: "... ... how are the backend team suppose to understand the model, its types, integrate it into the other systems?"

G: "Can I not just tell them and they can write it down?"

**
I'll just pause here for a moment, as you'll likely need to read that again out of sheer disbelief
**

I've never seen someone die inside the way the lead did. He started a syllable and his face just dropped, eyes glazed over and he instantly lost all the will to live. He replied:

" wel ............... it doesn't matter ... its not important ... I have to go, good luck with the project"

*killed the screen share and left the room*

now I know you are all dying in suspense to know what happened to that project, I can drop the shocking bombshell that it was in fact cancelled. Thankfully only ~350 man hours were spent on it

... yep, not a typo.

G's crowning achievement however will go down in history. VERY long story short, backend got deployed to the server and EVERYTHING broke. Lead investigated, found mistakes and config issues on every second line, load balancer wasn't even starting up. When asked had this been tested before it was deployed:

G: "Yeah I tested it on my machine, it worked fine"

lead: "... and on the server?"

G: "no, my machine will do the same thing"

lead: "do you have a load balancer and multiple VM's?"

G: "no, but Java is Java"

... and with that its time to end todays episode. Will G be our most incompetent? ... maybe.

Tune in later for more practiceSafeHex's most incompetent co-worker!!!

Well okay..

The person who found this toilet paper company, probably was a programmer. Also probably the best way to describe Array with an Object

"Why can't I just get the terminology right in my head"

java: map.
javascript: object?
python: dictionary!
ruby: HASH!
php: aSsoCiaTiVe aRrAy

Just spoke with another teams developer. (She's using Java)

Her: so we get a json object from your service, I want an array
Me: well that's not what you said in the specs... And it's not hard since it's just a Map
Her: what Map? It's JSonObject I need an Array
Me: give me the library your using..
Her: here...

I Google the documentation and methods and paste the link and the methods to use:

-length (she also wanted count)
-toJsonArray

This ain't JS, just use the . operator and go thru all the methods' docs... Or learn to use Google

I've a recently joined developer hired from campus sitting next to me.

She: I'm printing an array in Java but it's not working. Could you please check what's wrong?

I see this piece of code:

printArray(arr);

Me: Where is the printArray method?

She: (With a puzzled look) Oh, do I have to declare that?

Me: 😶😶😶 (lowered my head, walked away slowly praying for the company)

It was a basic java lesson. We had four values that we stored in a array. We had to make some calculations with the values. Then we had to sort those four values. That's the solution our teacher proposed:
if (arr[0] > arr[1]) {
int temp = arr[0];
arr[0] = arr[1];
arr[1] = temp;
}
if (arr[1] > arr[2]) {
int temp = arr[1];
arr[1] = arr[2];
arr[2] = temp;
}
if (arr[2] > arr[3]) {
int temp = arr[2];
arr[2] = arr[3];
arr[3] = temp;
}
if (arr[0] > arr[1]) {
int temp = arr[0];
arr[0] = arr[1];
arr[1] = temp;
}
if (arr[1] > arr[2]) {
int temp = arr[1];
arr[1] = arr[2];
arr[2] = temp;
}
if (arr[0] > arr[1]) {
int temp = arr[0];
arr[0] = arr[1];
arr[1] = temp;
}

When you see a Java devotee using Python and they're doing something like this:

array = [1, 2, 3, 4]
for n in range(0,len(array)):
print(array[n])

At least I get to tell them "hey it doesn't have to be so hard just do it like this:"

array = [1, 2, 3, 4]
for n in array:
print(n)

you know you've looked into too many languages if you have to google how to properly initialize a array in java after 5+ years coding

I would (at apprenticeship level) start to teach more software architecture and security related stuff.

Yes knowing how to iterate over an array is important but it’s getting lame...

And last but not least it’s fucking 2018 why am I writing a Java 6 swing GUI on paper as a test

You wanted to hear more about my "glorious" teacher. I deliver. So get a cup of tea, take a seat and prepare for insanity.
As I already told in a comment my programming teacher is one special snowflake who lives in his personal bubble. We have final exams in less than a month and he spents at least half a lesson talking about vanishing bees and missing plants from his garden. Other topics he likes to talk about (and tries to turn every freaking conversation into at least one of these):
1. Other students and their stupidity
2. Diesel scandal
3. His sick wife
4. "Why does noone read newspapers anymore?"
5. Why he can't teach Java but really really really wants to and everyone hates him and forces him to do C#.

Even if I try to interrupt him he'll go on until he thinks we gained some "common knowledge" - this is how he justifies these topics.

Everytime he introduced us to a new command he compared it to Java and sometimes he even falsely corrects code because he confuses them.
We are only 6 people including me (another story for another time) and he is not able to help everyone during a 90min lesson. He normally sticks with one person for at least one hour and just talks to them or even do their tasks. This is really annoying if you have a simple question. He won't answer you until he's finished whatever he's doing.

Most of the time he doesn't seem to understand what he's talking about/trying to teach us. He's muttering statements from our textbook to himself switching halfway through to another sentence while drawing not decipherable shit on the blackboard.

Another gem are his "guidelines" for classtests. We are allowed to use any command we know. Except the ones we learned not in class. And the ones he doesn't like. And the ones he doesn't want to exist. And of course not the ones which make you're life easier. So basically we are bound to use his favourite commands or we won't get a good grade. Example: use an array. List is not allowed. Never.
He has some weird fetish with arrays.

I once presented him perfectly fine code I wrote in my freetime and asked what some warnings meant. (Was because of different Visual studio versions as I learned later.) He scolded me for using things he didn't taught us yet and ranted about how I'm pressuring him into rushing these things now - I never wanted to show this to my classmates nor was this anything else than a project for fun and learning something new. (FYI the "new stuff" where classes and objects because i was tired of kilometers of spaghetti code). His rant went on a good 20minutes and - obviously - he didn't answer my question. I asked my fiance that evening and he explained it to me.
This should it be for this time. I'm sure I have more stories to tell for another time!
Thank you for reading. ^^

Dear javascript, if your array is treated like an arraylist THEN CALL IT A FUCKING ARRAYLIST

Sincerely, a java developer

Mother fucking SQL, fuck mathematicians, fuck every thing!

So let's supose we'd only need the first char of a string. Every, and I mean fucking every (php, java, javascript, ruby, python, haskell) fucking language, uses something like `substring(input, 0, 1)` as it knows the input is nothing more than a fucking array of chars, otherwise known as motherfucking String. Logically the offset for the first char is 0.

Enter SQL, there you need to put `SUBSTRING(input, 1, 1)` because fuck every one! Fucking math guys who developed relational algebra on which (most) databases are based on (I love you for it, but come on you fuckers!), Decided that the first character should be at position 1...

Fuckers

That moment when the instructor is explaining array in Java, and you are the only one in the batch having 4 Years of Experience, and Certification by Oracle

You know what just gets to me about garbage-collected languages like c# and Java? Fucking dynamic memory allocation (seemingly) on the stack. Like it's so bizzare to me.

"Hey, c#, can I have an array of 256 integers during run-time?"

"Ya sure no prob"

"What happens when the array falls out of scope"

"I gotchu fam lol"

PHP ist one of the languages I use regularly, but not the main language.
Anyhow, passing an array to a function will create a Copy of the array unless you specifically choose to Pass the reference.
That's seriously fucked up. What other language does that?! Coming from C, Java, Python to PHP I was not prepared to expect shit like that.

University Coding Exam for Specialization Batch:
Q. Write a Program to merge two strings, each can be of at max 25k length.
Wrote the code in C, because fast.
Realized some edge cases don't pass, runtime errors. Proceed on to check the locked code in the Stub. (We only have to write methods, the driver code is pre-written)
Found that the memory for the char Arrays is being allocated dynamically with size 10240.
Rant #1:
Dafuq? What's the point of dynamic Memory Allocation if you're gonna fix it to a certain amount anyway?
Continuing...
Called the Program Incharge, asking him to check the problem and provide a solution. He took 10 minutes to come, meanwhile I wrote the program in Java which cleared all the test cases. <backstory>No University Course on Java yet, learnt it on my own </backstory>
Dude comes, I explain the problem. He asks me to do it in C++ instead coz it uses the string type instead of char array.
I told him that I've already done it in Java.
Him: Do you know Java?

Rant #2:
No you jackass! I did the whole thing in Java without knowing Java, what's wrong with you!

fuck.
I think when you need 20 minutes to figure out that you tried to use (0) to acces array values instead of [0] in Java it is time to go to bed.

Java. AGAIN. 😡

so, I am trying to get a csv opened and read, and then search through it based on values. Easy peasy lemon squeezy in python, right?

Well, damned be java. You need a buffered reader to read the file. Then you have to "while(has next)" the whole damn thing, then you have to do something with the data that you read one by one, right? Well, not to be disappointed, they do have json libraries, but you **have to install** the plugins for it. Aka you have to manually add the libraries or use some backwards manager like maven.

Gotta admit, jdbc is neat if you're anal about your sql statements, but bring the same jazz to csv, and all the hell will break loose.

Now, if you just read your json data into multiple objects and throw them in an array... Kiss shorthand search's ass goodbye, because this mofo can't search through lists without licking the arse of every object. And now, you have to find another way because this way, you can't group shit you just read from csv. (or, I haven't found a way after 5 hours of dealing with the godforsaken shitshow that java libraries are.)

Like, I'm devastated. If this rant doesn't make much sense to you, blame some java library for it.
Shouldn't be too hard.

Today was a manic-depressive kind of day. Spent the morning helping some developers with getting their code to run a stored procedure to drop old partitions, but it wasn't working on their end. It was a fairly simple proc. But working with partitions is a little like working with an array. I figured out that they were passing the wrong timestamp, and needed to add +1 to delete the right partition. Got that sorted out, and things were good. Lunch time.

After lunch I did some busy work, and then the PO comes up at about 2PM and says he's assigned some requests to me. The first was just attaching some scripts. Easy. The second, the user wants a couple of schemas exported ... at 6PM. I've been in the office since 6:45AM.

While I'm setting up some commands to run for the data export, a BA walks up and asks if I'm filling in for another DBA who is out for a few weeks. Yep. There's a change request that hasn't been assigned, and he normally does the work. I ask when it's due. Well, the pre-implementation was supposed to be done in the morning, but it wasn't, and we're in the implementation window ... half way through. I bring up the change task, and look at. Create new schema and users. That's all it says. The BA laughs. I tell I need more to go on. 10 minutes later he sends an email with the information. There's only two hours left in the window, and I can only use half of it, because the production guys have to their stuff, and we're in their window. Now I'm irritated, because I'm new to Oracle, and it's an unforgiving mistress. Fortunately, another DBA says he'll do it, so that we can get it done in time. But can't work it either, because Dev DBAs don't have access to QA, and the process required access for this task. Gets shelved until the access issue is resolved. It's now after 4:15PM. I'm going to in traffic with that 6PM deadline.

I manage to get home and to the computer by 5:45PM. Log in. Start VPN. Box pops on screen. Java needs to update. I chose skip update. Box pops up again. It won't let me log in until Java is current. Passed.

I finally get logged in, and it's 6:10PM. I'm late getting the job started. I pull up Putty and log into the first box, and paste my pre-prepared command in the command line and hit error. Command not found. I'm tired, so it's a moment to sink in. I don't have time for this.

I log into DBArtisan and pull up the first data base, use the wizard to set the job, and off it goes. Yay. Bring up the second database, and have enter the connect info. Host not found. Wut? Examine host name. Yep, it's correct. Try a different method. Host not found. Go back to Putty. Log in. Past string. Launch. Command not found. Now my brain is quitting on me. Why now? It's after 6:30PM. Fiddle with some settings, reset $Oracle home. Try again. Yay. It works. I'm done. It's after 7PM.

There is nothing like technology to snatch the euphoria of a success away from you. It's a love-hate thing, but I wouldn't trade it for anything else. I'm done. Good night.

after beginning to learn numpy , i believe these packages were really created by some clown of a circus xD.
Everything is sooooo entertaining!!!

i learned java 3 years ago, but today if i had to crap out some crazy java or c++ expert , i would tell him about numpy's arrays...
Like , "hey dude python has this cool data structure in the numpy library called arrays, which can hold any datatypes in a kind of arraylist like fashion, and you can convert them from 1 dimensional to 1000 dimensional in just 1 line , and also do you know we can select any column with just array[position]? and even this position does not needs to be an integer, you can use a list , like array[[1,2,3]] will give you elements at array[1],array[2],array[3], and...."
wait, why is my friend dead ? xD
HAhahahaha

So I am doing a homework with the language my teacher made. He said we could opt for either Java or Lisaac, but he said the latter would be pretty hardcore. But I feel hardcore is just an understatement, and outside of an absence of documentation on the object methods which makes you look all the way through the library files when you look for one method/object, then another, then another and all, here's a single fact that will express my feelings:
In his language, there are three main types of errors:
* Execution errors: the program crashes when something that shouldn't be possible is attempted (looking for an item in an array that's out of its range) ; ok, I can take those
* Compilation errors: syntax errors, semantic errors, type incompatibility... the classic, ok, I can take those, I'm used to it
* Compiler errors: when the compiler compiles in C, but fails to do so! "Mister, am I allowed to ragequit?"

When searching through an array,because I also program using Java,i always end up putting for(x=0;x<array.length ;x++){}
Now in php I have to deal with this

Company has a severe lack of fresh blood.

"let's recruit everyone who has an IQ over room temperature and barely passes the mark".

Me protesting bloody murder cause I know that the idea is not just profoundly dumb, but frustration from high staff turnover takes a toll on *everyone*.

"nah can't be that bad".

Then the discussion started who could do monitoring and mentoring, so we can sort out the bad apples *quickly*.

Me reminding again that this is exactly what leads to a high staff turnover, as this is nothing else than "hire, hire - quickly fire".

Guess who won the award of being the mentor / monitor ....

*drum roll*

Come on, I know you would NEVER expect this.

Let me surprise you: M E.

Yeah. They chose the person that was absolutely against this idea...

Because that person is "most qualified for the task at hand and has the necessary qualifications".

Today was the first 4 h workshop with a new recruit.

The Lord has had zero mercy on me.

I started to mute myself after 30 minutes in regular intervals to just scream and curse the world.

How profound dumb a person can be amazes me.

Person has had a "very expensive 6 month boot camp course".

I was close asking if the boot camp course was in watching porn and wanking their brain cells out....

Git... Yeah he knew what he was doing...

Except that he messed up every commit by either not sticking to the companies format or - what I found funny the first 2 times, then not so much anymore - just writing a git commit message like a 15 year old teenage girl would write to their diary.

Programming. Oh yeah. He should be a programmer.

He had much Bootcamp.

Bootcamp expensive. Bootcamp good.

If someone is unable to iterate over an iterator... And instead starts creating an integer based array of a map's key name to then fetch the map value in an for loop based on the created key array.

Yeah. Bootcamp much good.

Creating DTOs...

It took an hour to write a DTO with him... Cause constructors are hard and it's even harder when you have to explain primitive datatypes in Java, null safety, constructors, NPEs, final, ...

Like really no experience at all.

The next week's will be amazing.

Either I get a valium drop or I'm gonna blow my head off, cause mentoring will drain the last bit of hope I had left in me.

Note that I do not blame the recruit (yeah he's dumb. But he has ZERO work experience, so it's not unexpected), I'm just too fed up with getting the poo crown despite being against the whole process.

I think the recruit could make it..........

But that I got the shittiest job ever is really haunting me.

I dunno how I survive the next weeks.

And this is just the first recruit... There will be more.

Well Argos, you now know what bad developers + Java can bring you. An out of bounds on an empty array -.^

Good job guys. Really, well done!

Ive been working on pseudo-Java (ie some 3rd company's UNDOCUMENTED programming language) that they parse into Java in their backend

It doesnt even support if-else (only ifs and elses) or a boolean combination of False and OR together lmao

mainly a GRPC middleware-language

Given its lack of features (arrays/collections) or documentation, I just had to implement a flag-array using a 0-1 string

Im throwing exceptions unless combined strings equal Lengths and is only 1s

living like in 80s-90s 💀

This story just left me speechless in any way and i want to share it. tl;dr at the end.
Im studying computer science in germany and in the first of the small classes i noticed... no, i was disturbed by a guy who would just say that the thing we're learning atm were so easy and the teacher shouldn't even bother to explain it to the class. I don't understand why you would spoile a class that hard... I'm here to learn and listen to the teacher, not to you little asshole. (We were doing basic stuff like binary system etc. but still, let us learn)
So he became unpopular pretty fast.
Fast forward, a few weeks of studying later there was a coding competition where you had to solve different algorithmic problems in a team as fast as possible.
I came there, without a team because my friends aren't interested but I enjoy such tournaments. This guy and me were the only ones without a team and we had to work together.
After him being a total dick for hours i had to watch him code a simple for-loop, that iterates through a sorted array. Nothing special, at this point anyone could do that task in our class so it shouldn't be a problem for him.

He made a simple for-loop and it worked fine, but we figured we had to iterate through the array the other way around.
'Alright', I think. 'Just let the index decr..' 'Pssshhh', he interrupted me and said he knows exactly how to do this.
I was quite impressed when he started to type in 'public int backsort..' in a new line. He tried to resort the array backwards with a quicksort that he then struggled to implement. (Of course we had to implement a quick runtime and we needed that quicksort badly)
I was kind of annoyed but impressed at the same time. I mumbled 'Java has an internal sorting algorithm already' just to amuse myself.
He then used that implementation.
After a few minutes of my pleasure and multiple tests without hitting the requested runtime, i tried to explain to him why we wouldn't need to sort that array backwards and he just couldn't believe it.
I hope that he stays more humble after that..
Also we became last place but thats ok :)

tl;dr: Guy spoiles whole class, brags with his untouchable knowledge (when we do things like binary system). In a competition has to iterate through a sorted array backwards - tries to implement a sorting algorithm to sort it backwards first. I tell him, we could use a already implemented java method. Then tell him we could simply iterate through decreasing the index. Mind-Blown

Yesterday I spent almost 3 hours trying to sort an array of objects in java. I'm a person who has written a lot of python and dart code and java is just so daunting. Every simple thing is so complicated.
You can sort a list of objects wrt any parameter using a one liner in python.
Finally after copy pasting a lot of code from stack overflow the thing got sorted. And the worst part I don't even know how the thing works.

Have u guys ever wonder, all those devs we rant about (mostly senior developer), how it feels like to be them? Today I realized, I am most probably becoming like one.
I joined devops 7 month back(around one and half year in industry). Right now, I am 2nd senior member in project. I have done deployment on multiple environments more than 100 times. But till today, I never knew how the deployment is being done. I knew to trigger job but I never knew how it worked. Today when a junior asked me, then I learn ansible, then I understand whole deployment process.(and remember I am 2nd senior most with 7 month in project)
Sometime I wonder, till now I always had good rating and most responsible title. But how much is that because of my technical knowledge? Sometime it feels like I have very good luck. But man, it's very depressing. Sometime it feels like my junior don't get enough limelight because I am in their way although they have good knowledge but they lack the though process for now. Most of the time my senior present me as role model to juniors, and it's very embarrassing for me(this will not continue on as I talked to my seniors) . I did work on good projects from time I joined company. And never had any issue and always deliver what needed. But I still can't write code in Java to take input or do for each on array in javascript without seeing stackoverflow once.
Now I fear that someday I will write piece shit of code and whole efficiency of project will go down cause of me. Atleast, the person who will get to fix it will get a chance to have good rant here. I tried open source projects to understand how to write good code but I always have hard time understanding new-projects which I never worked on.
Then there is reputation on Indian devs. This is my another Fear. That someday cause of me, my fellow devs will get bad reputation as well.
This coming year, my goal is to fill up all the holes but I don't know why my fingers are crossed.
Sorry, I had to bring this out somewhere. And please ignore my grammatical mistakes.

Not the most exciting bug i solved but i was very happy when i solved it!

we were working on a java game for a school project. Te game itself consists of a maze so we used a double array maze[][] to store all the Tiles of the maze. to move players around we used x and y coordinates. When we started playing we couldn't figure out why we could move through walls and go in weird directions. and finally it hit me,

java uses [y][x] , and mathematics uses (x,y)

Made a simulation/game in java using swing that runs on this algorithm:

-2D array was made (kinda like a chessboard).
-Random living cell was placed on the board.
Repeat:
-If a cell has X or less cells around it (living) it duplicates.
-If a cell has Y or more cells around it, it dies.

I was amazed at the types of shapes this created. There were so many variables I could play with, and probably spent hours just experiementing. I was really satisfied in the end. 😄

Screw Java. Spent the last two days in this language and it's driving me to fits. Tried making a generic function. Java can't seem to easily handle generic typed arrays. Java threw a fit when I converted an array function to an integer function. Java has all this stupid boilerplate code that you put on every stupid thing.

Programming in Java is about as pleasurable as running face first into a brick wall.

Never underestimate the power of a misplaced static in your Java to totally fuck you over.

I was busy with my computer science project for the semester where we have to implement a Sudoku solver without backtracking by using graph theory.

So there I was writing my data structure for the grid when for some reason all the cells were initialized with the value 8.

After a whole night of debugging I was about to start over when I realized I had made my array static.

And boom, it works. WTF!!!!!!!

My first programming lan was Lua. And they who know that lan knows, that I may was confused when I switched to a 'normal' programming lan like c# or java, because when you init a string you just type: a = ":)". but you can still set it to an int: a = 10. So every vars in Lua aren't sticked to a type. The arrays also can have any kind of var in it.

So I never learned what a String, int, ... is. I didn't understood why a method can't just return anything or why an array has a length.

How Microsoft expect anyone to develop using any technology they introduce with so many limitations.
Moi a Microsoft dumb enthusiast said to myself : hey dude you are a developer stop whining about the app gap bust a move create decent array of apps and release them, went into a full project management mode wrote requirements did sketches and some prototypes, time to execute.
1. first app: image files organizer, viewer , with some light editor capabilities and album creator after some work i came to discover that you don't have a proper file system APIs to show a folder tree view in my app "WTF" there are work arounds and dirty solutions but seriously? i can only access the stupid media folders created by Microsoft and that's it.
so i ditched the apps until uwp become a development tools with target audience other than kids who eat crayons, and while using "Edge" i thought to my self : "you know what dude extensions are cool and if you do something like a speed dial it would be awesome"
fire up my text editor started writing my extension to discover that:
"you cannot use localStorage from local HTML files".
moral of the story
MS is failing with consumers not because people hate MS but rather MS hates itself like no engineer over there said to him self this is fking stupid ?
other limitations :
no proper system tray access
no registry access what so ever
and i have started 2 days ago.
yeah Ms this is the main app gap problem the uwp sucks big time. compared to android Java which has a great access to every aspect of the device even apple provide better APIs for their systems.
if uwp is MS future then rip MS.
please i stand corrected if anyone knows better.

As I started learning React, I found the allure of declarative style of programming appealing. I try to avoid maintaining multiple state variables for data that can be derived from the base state itself that's stored in the redux store. It works wonders when I have to change something; as I just need to make changes to one function in the utils folder and that change is implemented across the whole app, rather than change the instances everywhere as was the case when I initially started working on this project after the previous dev left.

But I see myself redefining a lot of computed values everywhere, and if I just try to define them in the root component, I'll end up with a huge list of props being passed to a couple of components. Shifting it to the utils folder helps a bit, but then I find myself defining even the simplest of array filtering methods to the utils folder.

Is this need to define computed values everywhere a trade-off that you need to accept when you write declarative code, or is there a workaround/solution I am missing? As of now, the code-base is much better than how it used to be when they had a literal Java dev work on React with their knowledge of Java patterns being used in a framework that is the polar opposite of OOP, but I still feel like there's room for improvement in this duplication of computed values.

Can the subscript of an array be a floating point number ?
i know, i know, i can find answers on google and i found one on quora but i want you guys to help me 🤗 in the comments

Maybe you people will like this story.
The past semester I studied Java in class. First time doing object oriented programming, I had an annoying teacher but got the hang of it. I still miss C from the last year.
As a final project we had to do any program and apply some stuff we saw in class (The program should have an array list, use interfaces, bla bla bla bery simple stuff). It also must have a complete documentation, a manual and a diary explaining what was developed every week. Bonus points if it was in a repository like GitLab.
I wanted to do an RPG game in a matrix, like a rougelike or an old FF game, that should be a map or two, a few monsters and items and that's it. Enough to show what can I do and to have enough excuses to apply everything that the teacher asked. I had a team with two friends who wanted to do the same.
After making accounts in three different pages that apparently would help us to be more organized (One to make charts and two task trackers) I lost all patience and made an account in GitLab, made the basic classes that we had defined in a chart, divided the tasks and put them in to do on GitLab and we started to work.
One of my companions caused a lot of problems. First, he didin't wanted to learn how to use GitLab (I simply asked them to do merge requests) and he insisted to use GitHub. Then he started to say that using the console version was even better (Pretty sure he said thet he never used Git, but maybe was gas poisoning). The GitLab repository never had a single commit to his name.
BUT WAIT IT GETS BETTER all the entire time, he was complaining about the graphical interface of the game, wanting to use some SDK for RPGs that he found. I told him that we will see that at the end, that first we should have all the mechanics done, test it in ASCII in the console and then, if we have time, we will put the visual interface, separated and optional from the main program to avoid problems.
After two weeks where he gave me very simple standard stuff late, half done and through Google Drive, I discovered he was most of the time working on... the graphical interface SDK! He took the job already done by me and the other guy and making a pretty hardcoded integration with the graphical interface and making everything that he tought it would be necesary. Soon enough the GitLab repository was totally outdated and completly useless. He had the totallity of the project in his half broken laptop, and sometimes he gave us a zip with all the code, outdated after a few minutes. Most of the stuff that I made was modified, a lot of the code was totally unknown to what it was and I had no idea even of how the folders were organised.
We had a month to finish it. I got totally disconected from the project and just hoped for the best, sometimes doing a handful of generic and adaptable lines of code for a specific thing (Funny enough, many core mechanics were nonexistent). The other guy managed to work more on the project, mostly fixing the mess that the guy did: apparently he didin't read the documentation of the SDK and just experimented and saw tutorials and tried to figure out how to do what he wanted.
Talking about documentation: we dont had yet. The code wasn't even commented propely. We did all that the last week and some stuff was finished the last night. The program apparently worked but I had no idea.
Thank God, the teacher just looked over everything and was very impressed by the working camera and the FF tiles. I don't think he saw the code or read too much of the documentation, much less when I directly wrote how I lost all access to the project.
I had a 10/10. I didin't complained. Most easy and annoying ten I ever had. I will never do a project with that guy.

Just started doing my project for Java Class, a Polynomial Calculator App.

Get it done, get a dozen errors. Fix every bug. Find other bugs when inputting.
Brainstorm 5 minutes and realize I could change the way I write the polynomial at input.
Change 20 lines of code that do String, Split, Run through the split and check for coefficient and power, parse them to float in an array to specific positiona - to 5 simple lines.

Program works fine. No more previous errors.
Have the great idea to add the following:
-If you divide the Polynomial by 0 output "Are you retarded?"

P.s. I'm happy about my first project even if I hate Java.

And now I've run into a whole another issue which is really fucking strange.

Has it ever occured that a Object in java looses all it's values after being put into an array of same type?

My problem:

[code...]

Mat[] matArray = new Mat[totalFramesOfVideo];

videoCapture.open();

Mat currentFrame = new Mat();
int frameCounter = 0;
while(videoCapture.read()) {

currentFrame = (last read frame as a Mat)

matArray[frameCounter] = currentFrame;

frameCounter++;
}

then, after filling the array and accessing elements, they lose all their object values.
Eg. Before currentFrame's dimensions were 1080*1920, but matArray[index] dimensions are suddenly 0*0.

Why is React.js so hard to learn for someone from a JAVA back end background? I'm constantly asking myself "so should I set param as string? or int? Array? so many methods that's returning html tags! what collects all and makes it appear at WHERE??"

I think twice when I've to select the month in some online form ... does 11 means Nov or Dec?

In android 7.1, I've seen a lot of conflicting reports about crypto security.

If I do something like the following in the default android 7.1 browser...

var array = new Uint32Array(n);
window.crypto.getRandomValues(array);

How secure would the resulting numbers be overall? I'm asking because I've seen a lot of articles talking about it, but they never specifically mention the default 7.1 android *browser* and what or how it obtains secure random numbers. They only ever talk about the api, sdk, and developers working in java.

Java: creating arrays of a generic type.

Doable but hacky.

What is the fastest way to sort an array of dates in java?