import java.util.*;
import java.io.*;
import java.util.concurrent.*;

public class JavaList {

	public static void main(String[] args) {
		
		// declare list object
		List<Integer> intList = new ArrayList<Integer>();
		
		// loop and add 100 thousand integers to list
		// time the amount of time to load list and display list
		long startTime = System.nanoTime();
		for (Integer i = 0; i < 100000; i++)
		{
			intList.add(i);
		}
		
		// output contents of list
		Iterator it = intList.iterator();
		while(it.hasNext())
		{
			int i = (Integer) it.next();
			System.out.println(i);
		}
		long endTime = System.nanoTime();
		
		// output results
		double timeSeconds = (double) (endTime - startTime)/1_000_000_000.0;
		System.out.println("Java time to build and display list: " + timeSeconds + " seconds");
		System.out.println("Number Elements: " + intList.size());
	}
}