Quick Java code snippet to sort Array ascending or descending using comparator in Java.

import java.util.Arrays;
import java.util.Comparator;

public class SortFruitObject {

	public static void main(String args[]) {
		Fruit pineappale = new Fruit("Pineapple", "Pineapple description", 70);
		Fruit apple = new Fruit("Apple", "Apple description", 100);
		Fruit orange = new Fruit("Orange", "Orange description", 80);
		Fruit banana = new Fruit("Banana", "Banana description", 90);

		Fruit[] fruits = new Fruit[4];
		fruits[0] = pineappale;
		fruits[1] = apple;
		fruits[2] = orange;
		fruits[3] = banana;

		Arrays.sort(fruits, FruitNameComparator);
		System.out.println("Sort by Fruit Name");
		for (Fruit temp : fruits) {
			System.out.println(temp.toString());
		}
		
		System.out.println("=======================");		
		Arrays.sort(fruits, fruitQuantityComparator);
		System.out.println("Sort by Fruit Quantity");
		for (Fruit temp : fruits) {
			System.out.println(temp.toString());
		}
	}

	public static Comparator<Fruit> FruitNameComparator = new Comparator<Fruit>() {
		public int compare(Fruit fruit1, Fruit fruit2) {
			String fruitName1 = fruit1.getFruitName().toUpperCase();
			String fruitName2 = fruit2.getFruitName().toUpperCase();

			// ascending order
			return fruitName1.compareTo(fruitName2);

			// descending order
			// return fruitName2.compareTo(fruitName1);
		}

	};

	public static Comparator<Fruit> fruitQuantityComparator = new Comparator<Fruit>() {
		public int compare(Fruit fruit1, Fruit fruit2) {

			// ascending order
			return fruit2.getQuantity() - fruit1.getQuantity();

			// descending order
			// return fruit1.getQuantity() - fruit2.getQuantity()
		}

	};
}

class Fruit {
	private String fruitName;
	private String fruitDesc;
	private int quantity;

	public Fruit(String fruitName, String fruitDesc, int quantity) {
		super();
		this.fruitName = fruitName;
		this.fruitDesc = fruitDesc;
		this.quantity = quantity;
	}

	public String getFruitName() {
		return fruitName;
	}

	public void setFruitName(String fruitName) {
		this.fruitName = fruitName;
	}

	public String getFruitDesc() {
		return fruitDesc;
	}

	public void setFruitDesc(String fruitDesc) {
		this.fruitDesc = fruitDesc;
	}

	public int getQuantity() {
		return quantity;
	}

	public void setQuantity(int quantity) {
		this.quantity = quantity;
	}
	
	@Override
	public String toString() {
		return "Name=" + getFruitName() + ", Quantity=" + getQuantity();
	}
}

Output
sort Array ascending or descending using comparator in Java.