KaiquanMah/TurkuBasicOOPinJava

1The program has again defined the class FairyTaleCharacter and its derived classes Wizard, Nephew, and Superhero.2 3Write a method:4public static int countWizards(ArrayList<FairyTaleCharacter> characters)5that takes a list of different fairy tale characters as a parameter 6and returns the number of wizards in the list as an integer.7 8 9 10 11 12import java.util.ArrayList;13import java.util.Collections;14import java.util.Random;15 16public class Test {17    public static void main(String[] args){18        final Random r = new Random();19        20        for (int test=1; test<=3; test++) {21            22            System.out.println("Test " + test);23            24            int age = r.nextInt(5) + 5;25            ArrayList<Integer> ages = new ArrayList<>();26            for (int i=0; i<20; i++) {27                ages.add(age);28                age += r.nextInt(10) + 1;29            }30            31            ArrayList<FairyTaleCharacter> characters = new ArrayList<>();32            String[] colors = "blue yellow red black brown white green".split(" ");33            34            for (String name : new String[] {"Benny", "Rupert", "Milo", "Charlie"}) {35                String color = colors[r.nextInt(colors.length)];36                characters.add(new Nephew(name, ages.remove(r.nextInt(ages.size())), color));37            }38            39            String[] superpowers = "super vision flight super strength reading ability super sneeze".split(" ");40            for (String name : new String[] {"Manbat", "Mouseman", "Bulk", "Copperman", "Steelcat"}) {41                String power = superpowers[r.nextInt(superpowers.length)];42                characters.add(new Superhero(name, ages.remove(r.nextInt(ages.size())), power));43            }44            45            ArrayList<FairyTaleCharacter> wizards = new ArrayList<>();46            String[] wands = "oak licorice birch alder walnut plastic".split(" ");47            for (String name : new String[] {"Harry", "Hermione", "Ron", "Voldemort", "Dumbledore", "Snape"}) {48                String wand = wands[r.nextInt(wands.length)];49                wizards.add(new Wizard(name, ages.remove(r.nextInt(ages.size())), wand));50            }51            52            int ch = r.nextInt(characters.size());53            int wz = r.nextInt(wizards.size());54            55            Collections.shuffle(characters, r);56            Collections.shuffle(wizards, r);57            58            ArrayList<FairyTaleCharacter> testList = new ArrayList<>();59            60            for (int i=0; i<ch; i++) {61                testList.add(characters.get(i));62            }63            64            for (int i=0; i<wz; i++) {65                testList.add(wizards.get(i));66            }67            68            Collections.shuffle(testList, r);69            70            System.out.println("Fairy Tale Characters:");71            testList.stream().forEach(c -> System.out.println("" + c));72            73            System.out.println("Wizards: " + countWizards(testList));74            75            System.out.println("");76        }77    }78    79 80    //ADD81    public static int countWizards(ArrayList<FairyTaleCharacter> characters) {82        int countWizards = 0;83        for (FairyTaleCharacter character : characters) {84            if (character instanceof Wizard) {85                countWizards++;86            }87        }88        return countWizards;89    }90 91 92 93 94 95 96 97 98 99}100 101 102 103 104class FairyTaleCharacter {105    private String name;106    private int age;107    108    public FairyTaleCharacter(String name, int age) {109        this.name = name;110        this.age = age;111    }112    113    public String getName() {114        return name;115    }116    117    public int getAge() {118        return age;119    }120    121    @Override122    public String toString() {123        return name + ", " + age + " years";124    }125}126 127 128 129 130class Nephew extends FairyTaleCharacter {131    private String capColor;132 133    public Nephew(String name, int age, String capColor) {134        super(name, age);135        this.capColor = capColor;136    }137 138    @Override139    public String toString() {140        return super.toString() + ", " + capColor + " cap (nephew)";141    }142}143 144 145 146 147class Wizard extends FairyTaleCharacter {148    private String wand;149 150    public Wizard(String name, int age, String wand) {151        super(name, age);152        this.wand = wand;153    }154    155    @Override156    public String toString() {157        return super.toString() + ", wand: " + wand + " (wizard)";158    }159}160 161 162 163 164class Superhero extends FairyTaleCharacter {165    private String superpower;166 167    public Superhero(String name, int age, String superpower) {168        super(name, age);169        this.superpower = superpower;170    }171    172    @Override173    public String toString() {174        return super.toString() + ", superpower: " + superpower + " (superhero)";175    }176}177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196Test 1197Fairy Tale Characters:198Rupert, 111 years, white cap (nephew)199Milo, 69 years, blue cap (nephew)200Hermione, 105 years, wand: alder (wizard)201Steelcat, 42 years, superpower: flight (superhero)202Manbat, 98 years, superpower: super (superhero)203Snape, 50 years, wand: alder (wizard)204Wizards: 2205 206Test 2207Fairy Tale Characters:208Steelcat, 54 years, superpower: vision (superhero)209Manbat, 32 years, superpower: flight (superhero)210Hermione, 88 years, wand: birch (wizard)211Mouseman, 33 years, superpower: super (superhero)212Rupert, 53 years, green cap (nephew)213Wizards: 1214 215Test 3216Fairy Tale Characters:217Benny, 27 years, blue cap (nephew)218Copperman, 43 years, superpower: super (superhero)219Rupert, 140 years, green cap (nephew)220Steelcat, 108 years, superpower: super (superhero)221Mouseman, 120 years, superpower: flight (superhero)222Wizards: 0223 224 225 226 227 228