Chapter 20.4, Problem 20.4.1CP

Explanation of Solution

“Yes”, user can use the forEach() method on any instance of collection class.

• forEach() method is the default method in the Iterable interface.
• forEach() method is defined in Collection classes which inherit iterable interface to iterate through the elements.

Program:

import java.util.ArrayList;

import java.util.List;

public class Foreachexample

{

public static void main(String[] args)

{

//Create new Arralist

List<String> l1 = new ArrayList<String>();

//Add elements to the array

l1...