Finding Largest,Second Largest,Lowest Number in ArrayList

Example:

package largestnumber;

import java.util.ArrayList;

import java.util.Collection;

import java.util.Collections;

import java.util.Iterator;

import java.util.ListIterator;

import java.util.Scanner;

import org.apache.commons.collections.IteratorUtils;

public class highestnumber {

public static void main(String[] args) {

int i = 0;

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

Scanner s = new Scanner(System.in);

System.out.println("Enter size of array:");

int n = s.nextInt();

System.out.println("You have to enter  " + (n - i) + " values:");

for (; i < n; i++)
 {

arraylist.add(s.nextInt());

}

Collections.sort(arraylist);

System.out.println("All Elements in the Array List are: " +arraylist);

System.out.println("Lowest Number in the  Array is:"

+ arraylist.get(0));

System.out.println("Second Largest Number in the Array is: "

+ arraylist.get(arraylist.size() - 2));

System.out.println("Largest Number in the Array is: "

+ arraylist.get(arraylist.size() - 1));

}

}

Output:

Enter size of array:

5

You have to enter  5 values:

3452

7865

9783

1748

9934

All Elements in the Array List are: [1748, 3452, 7865, 9783, 9934]

Lowest Number in the  Array is:1748

Second Largest Number in the Array is: 9783

Largest Number in the Array is: 9934