App.java

package com.iluwatar;

import com.iluwatar.Hero.HeroBuilder;

/**
 * 
 * This is the Builder pattern variation as described by Joshua Bloch in
 * Effective Java 2nd Edition.
 * 
 * We want to build Hero objects, but its construction is complex because of the
 * many parameters needed. To aid the user we introduce HeroBuilder class.
 * HeroBuilder takes the minimum parameters to build Hero object in its
 * constructor. After that additional configuration for the Hero object can be
 * done using the fluent HeroBuilder interface. When configuration is ready the
 * build method is called to receive the final Hero object.
 * 
 */
public class App {

	public static void main(String[] args) {

		Hero mage = new HeroBuilder(Profession.MAGE, "Riobard")
				.withHairColor(HairColor.BLACK).withWeapon(Weapon.DAGGER)
				.build();
		System.out.println(mage);

		Hero warrior = new HeroBuilder(Profession.WARRIOR, "Amberjill")
				.withHairColor(HairColor.BLOND)
				.withHairType(HairType.LONG_CURLY).withArmor(Armor.CHAIN_MAIL)
				.withWeapon(Weapon.SWORD).build();
		System.out.println(warrior);

		Hero thief = new HeroBuilder(Profession.THIEF, "Desmond")
				.withHairType(HairType.BALD).withWeapon(Weapon.BOW).build();
		System.out.println(thief);

	}
}