Delphi

The language for building cross-platform apps

Code Example:

//The button action we have added
procedure TForm1.Button1Click(Sender: TObject);
begin
  Label1.Caption := 'Hello World'; 
  //Label changed when button pressed
end;

Code Example:

using System;
class Solution
{
  static void Main(String[] args)
  {
    Console.WriteLine("Hello World!");
  }
}

C#

The language for building Windows apps

HTML

The language for building websites

Code Example:

<!DOCTYPE html>
<html>
  <title>HTML Tutorial</title>
<body>
  <h1>This is a heading</h1>
  <p>This is a paragraph.</p>
</body>
</html>

Code Example:

body {
  background-color: darkgray;
}
h1 {
  color: white;
  text-align: center;
}
p {
  font-family: verdana;
  font-size: 18px;
}

CSS

The language for styling websites

JavaScript

The language for building interactive websites

Code Example:

<button onclick="myFunction()">Click Me!</button>
<script>
function myFunction() {
  var x = document.getElementById("demo");
  x.style.fontSize = "25px"; 
  x.style.color = "red"; 
}
</script>

Code Example:

<?php 
Print "Hello, World!";
?>
<?php 
Echo "Hello, World!";
?>

PHP

The language for the server backend on websites