Comparator

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public class ComparatorTest {public static void main(String[] args){Car car1 = new Car("Tokyo", 20);Car car2 = new Car("LandRover", 50);Car car3 = new Car("Ferrari", 100);Car car4 = new Car("Porsche", 100);Car[] cars = new Car[]{car2, car1, car4, car3};Arrays.sort(cars, new ComparatorCar());for (Car car : cars) {System.out.println(car.getName() + ":" + car.getSpeed()); //car1, car2, car4, car3}}}class Car{private int speed;private String name;public Car(String name, int speed) {this.name = name;this.speed = speed;}public int getSpeed() {return speed;}public void setSpeed(int speed) {this.speed = speed;}public String getName() {return name;}public void setName(String name) {this.name = name;}}class ComparatorCar implements Comparator{@Overridepublic int compare(Object car0, Object car1) {if(((Car)car0).getSpeed() > ((Car)car1).getSpeed()){return 1;}else if(((Car)car0).getSpeed() == ((Car)car1).getSpeed()){return 0;}return -1;}}

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