ArrayList17.java

/* 17. Write a Java program to empty an array list. 
	use clear()
	use removeAll(CollectionObject) --> does not clear all the elements in the array list like clear() unless if all the elements are equal
 */
 
 import java.util.List;
 import java.util.ArrayList;
 
 public class ArrayList17
 {
	public static void main(String[] args)
	{
		List<String> colors = getColors();
		System.out.println("Colors are: "+colors);
		
		colors.clear();
		System.out.println("Colors are after clearning: "+colors);
		System.out.println("Is Empty? "+colors.isEmpty());
		System.out.println("Size is: "+colors.size());
	}
	public static List<String> getColors()
	{
		List<String> colorsList = new ArrayList<>();
	
		System.out.println("Adding colors...");
		
		colorsList.add(new String("Red"));
		colorsList.add(new String("Blue"));
		colorsList.add(new String("Green"));
		colorsList.add(new String("Orange"));
		colorsList.add(new String("Violet"));
		colorsList.add(new String("Yellow"));
		colorsList.add(new String("Indigo"));
		colorsList.add(new String("White"));
		
		return colorsList;
	}
 }