Hands-On Design Patterns with Java

Roaster class

The first class in our solution is the Roaster class. This class allows for the instantiation of multiple Roaster objects. The class contains a constructor method and an add() method for adding components to a roaster, and a display() method for displaying a roaster's components list:

import java.util.LinkedList;public class Roaster {    private LinkedList<String> components;    public Roaster() {        components = new LinkedList<>();    }    public void add(String component) {        components.addLast(component);    }    public void display() {        System.out.println("\n\nROASTER BUILD:");        for (int i=0; i<components.size(); i++) {            System.out.println(components.get(i));        }    }}

As shown in the preceding code, the java.util.LinkedList package was imported because ...