find three largest numbers of array in java

/**
 * @author lautturi.com
 * Java example: find three largest numbers in java array
 */

import java.util.*;
import java.io.File;
import java.io.FileNotFoundException;

public class Lautturi {
	private static int[] findThreeLargestNumbers(int[] arr) {
		PriorityQueue<Integer> pq = new PriorityQueue<>();
		int[] result = new int[3];
		for (int val : arr) {
			pq.add(val);
			// Do not allow size of pq exceed 3
			if (pq.size() > 3) {
				pq.remove();
			}
		}
		// Get the three largest values and store them in result
		for (int idx = 0; idx < result.length; idx++) {
			result[idx] = pq.remove();
		}
		return result;
	}

	public static void main(String[] args) throws FileNotFoundException {

		int[] numbers = { 11,4,12,7,55,8,12,8,13,55,12,7 };
		int[] result = findThreeLargestNumbers(numbers);
		System.out.println(Arrays.toString(result));
		
	}
}

output:

[13, 55, 55]