Largest/Smallest number in array

import java.util.ArrayList;
public class SmallestinList {
public static void main(String []args)
{
int []a = {12,23,15,34,45,56,67,89,80,8,80,11};
ArrayList<Integer> list=new ArrayList<Integer>();
//list=Arrays.asList(a);
for(int i=0;i<a.length;i++)
{
list.add(a[i]);
}
//Using sort method of collection class
/*Collections.sort(list);
System.out.println("The sorted list is"+list.toString());
int n=list.size();
System.out.println(" Length of list "+n);
System.out.println("The smallest number in list is:  "+list.get(0));
System.out.println("The Largest number in list is:  "+list.get(n-1));
System.out.println("The second largest number in list is:  "+list.get(n-2));*/
//Self implementation
int smallest=list.get(0);
int largest=list.get(0);
for (int i=0;i<list.size()-1;i++)
{
if(smallest>list.get(i+1))
{
smallest=list.get(i+1);
}
if(largest<list.get(i+1))
{
largest=list.get(i+1);
}
}
System.out.println("The smallest number in list is:  "+smallest);
System.out.println("The Largest number in list is:  "+largest);
}
}