package lekcje; public class Pracownik implements Comparable{ private String name; private int age; public Pracownik(String name, int age) { this.name = name; this.age = age; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } @Override public String toString() { return "Pracownik{" + "name='" + name + '\'' + ", age=" + age + '}'; } @Override public int compareTo(Pracownik o) { return this.getAge()-o.getAge(); } }