<p><strong>HTML</strong></p>

<p>since 2020</p>

<p>years: 4</p>

<p class='css'>CSS</p>

.css:before {content: "CSS"; font-weight: bold;}

.since:before {content: "2020";}

.years:before {content: "4";} 

import java.time.LocalDate;

public class Main {

	public static void main(String[] args) {

	 System.out.println("Java");

	 int since = 2020;

	 int years = LocalDate.now().getYear() - since; // => 4

	}

}

#!/bin/bash

echo "ShellScript"

since=2021

years=$(($(date +%Y) - since)) # => 3

console.log("JS & NodeJS");

const since = 2021;

const years = new Date().getFullYear() - since; /* => 3 */

echo "PHP";

$since = 2022;

$years = date('Y') - $since; # => 2

SELECT 'Oracle PL/SQL' FROM dual;

DECLARE

  since NUMBER := 2021;

  current_year NUMBER;

  years NUMBER;

BEGIN

  SELECT EXTRACT(YEAR FROM SYSDATE) INTO current_year FROM dual;

  years := current_year - since;

  DBMS_OUTPUT.PUT_LINE(years); -- => 2

END; /

import Foundation

print("Swift")

let since = 2023

let currentYear = Calendar.current.component(.year, from: Date())

let years = currentYear - since // => 1