My first Hello Worldy was definitely on my ATARI 400 in BASIC. On that machine you could use certain key combinations to move the cursor all over the screen and create text animation.

I think my first non-trivial program was something that stored all your keystrokes in an array so you could replay the animations/text-manipulations you created.

Mine was pascal a long time ago when I was in the university.

My first real "application", a webapp, was a self made backend/cms for a website. The same time I had to write some calculators and simple stuff like that in school. It all started in 15 years ago.

I wrote my first program in Pascal.

My first program was in some version of Basic, in a Sinclair Z80. Was not mine, it was from a Friend and the computer you had to connect it to the TV set as monitor. I spent the weekend reading the manual and learning to program by myself.

I have done many simple programs in my high school using C language. I was guided by my professors to do those. But my first "Hello World" program was written in PHP.

<?php
echo "Hello World";
?>

My first program was coded in Java. It was a simple program which did all the arithmetic operations by getting inputs through command line arguments.

My first Program is "Hello World" using C language.

My first lines were printed game listing copied into an Amstrad computer (really some scribe work, so little sense at that time), and there were no hello world in there. Years later, I don't remember well, but it must have been either C or Pascal, and probably on a paper sheet before going to the computer lab to try it 'for real' ;-)

My first hello world application was with pascal:

program Hello;
begin
  writeln ('Hello, world.')
end.

Well, mine was a PHP app that accepted two gadget names, accessed an API (don't remember the name) and showed a specs comparison chart to the user. It was supposed to be a tiny app, but my friend and I grew it to something bigger. We launched it as a website after that. We ran it for a few days and eventually sold it to a client who was looking for something similar.

It was a simple command line app that would continuously monitor a directory and backup any new files to a cloud server. By the way it was an assignment given to us as a part of college project. It was interesting, so I started coding. Ultimately I realized that when you actually start doing a task, things get easier for you.

I started my career with PHP. So, my first app was a small bot written in PHP that used to search movie names and crawl corresponding WikiPedia pages. Its job was to extract all the relevant movie details like Name, Release Date, Cast, Budget etc from the WikiPedia page and populate my local MySQL database. Then I created an HTML page that would make an AJAX request to retrieve the movie details.

I started my programming career with Java. My first program was a small GUI tool that accepted a web page URL and fetched all the meta tags present on the page. It was built using Java and Swing.