How to find first and second biggest numbers in an ArrayList of integers

import java.util.ArrayList;
import java.util.Collections;

public class BignumandNextBignumusingCollections {

	public static void main(String args[]) {

		ArrayList<Integer> numList = new ArrayList<Integer>();

		//Add the integer numbers to the Array List as many you need
		numList.add(35);
		numList.add(21);
		numList.add(94);
		numList.add(346);
		numList.add(15);
		numList.add(82);
		numList.add(90);

		//Use the Collections class to find the biggest number from the above Array list of integers
		System.out.println("The maximum number in the given array List="+Collections.max(numList));

		//Remove the first biggest number from the above ArrayList
		numList.remove(numList.indexOf(Collections.max(numList)));

		//Use the Collections class to find the second biggest number from the above Array list of integers
		System.out.println("The second maximum number in the given array List="+Collections.max(numList));		
	}
}