import java.io.*;

public class Task {
    public static void main(String[] arguments) {
        var coworker = new Coworker();

        coworker.firstName = "Sebastian";
        coworker.lastName = "Mayer";
        coworker.number = "1234";
        coworker.salary = 3000;

        System.out.print("Vorname: ");
        System.out.println(coworker.firstName);

        System.out.print("Nachname: ");
        System.out.println(coworker.lastName);

        System.out.print("Personalnummer: ");
        System.out.println(coworker.number);

        System.out.print("Monatslohn: ");
        System.out.println(coworker.salary);

        coworker.increase(5);

        System.out.print("Monatslohn erhöht um 5%: ");
        System.out.println(coworker.salary);
    }
}