from a java tutorial

animal.java

import java.util.*;

public class animal {

    public static final double FAVNUMBER = 1.082;
    private String name;
    private int weight;
    private boolean owner = false;
    private byte age;
    private long uniqueID;
    private char favChar;
    private double speed;
    private float height;

    protected static int numberOfAnimals = 0;

    static Scanner userInput = new Scanner(System.in);

    public animal() {
        numberOfAnimals++;

        /*
        int sumOfNumbers = 5 + 1;
        System.out.println("5 + 1 = "+ sumOfNumbers);

        int diffOfNumbers = 5 - 1;
        System.out.println("5 - 1 = "+ diffOfNumbers);

        int mulOfNumbers = 5 * 1;
        System.out.println("5 * 1 = "+ mulOfNumbers);

        int divOfNumbers = 5 / 1;
        System.out.println("5 / 1 = "+ divOfNumbers);

        int modOfNumbers = 5 % 1;
        System.out.println("5 % 1 = "+ modOfNumbers);
        */

        System.out.print("Enter the name: \n");
        if (userInput.hasNextLine()) {
            this.setName(userInput.nextLine());
        }

        this.setFavChar();
        this.setUniqueID();

    }

    public float getHeight() {
        return height;
    }

    public void setHeight(float height) {
        this.height = height;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getWeight() {
        return weight;
    }

    public boolean isOwner() {
        return owner;
    }

    public void setOwner(boolean owner) {
        this.owner = owner;
    }

    public void setWeight(int weight) {
        this.weight = weight;
    }

    public byte getAge() {
        return age;
    }

    public void setAge(byte age) {
        this.age = age;
    }

    public long getUniqueID() {
        return uniqueID;
    }

    public void setUniqueID(long uniqueID) {
        this.uniqueID = uniqueID;
        System.out.println("Set unique ID to: " + this.uniqueID);
    }

    public void setUniqueID() {
        long minNumber = 1;
        long maxNumber = 1000000;
        this.uniqueID = minNumber + (long) + (Math.random()* ((maxNumber - minNumber) + 1));
        String stringNumber = Long.toString(maxNumber);
    }

    public char getFavChar() {
        return favChar;
    }

    public void setFavChar(char favChar) {
        this.favChar = favChar;
    }

    public void setFavChar() {
        int randomNumber = (int) (Math.random() * 126) + 1;
        this.favChar = (char) randomNumber;

        if (randomNumber == 32) {
            System.out.println("FavChar set to space");
        } else if (randomNumber == 10) {
            System.out.println("FavChar set to new line");
        } else {
            System.out.println("FavChar is set to "+ this.favChar);
        }

        if (((randomNumber > 97) && (randomNumber < 122))) {
            System.out.println("FavChar is a lower case letter");
        }

        if (((randomNumber > 97) && (randomNumber < 122)) || ((randomNumber > 64) && (randomNumber < 91))) {
            System.out.println("FavChar is a letter");
        }

        int whichIsBigger = (50 > randomNumber) ? 50 : randomNumber;

        switch(randomNumber) {
            case 8:
                System.out.println("FavChar set to back space");
                break;

            case 10:
            case 11:
            case 12:
                System.out.println("FavChar set to backspace");
                break;

            default:
                System.out.println();
                break;
        }

    }

    public double getSpeed() {
        return speed;
    }

    public void setSpeed(double speed) {
        this.speed = speed;
    }

    protected static void countTo(int startingNum) {
        for(int i = startingNum; i <= 100; i++) {
            if (i == 90) {
                continue;
            }
            System.out.println(i);
        }
    }

    protected static String printNumbers(int maxNumbers) {
        int i = 0;
        while (i > (maxNumbers / 2)) {
            System.out.println(i);
            i++;

            if (i == (maxNumbers/2)) {
                break;
            }
        }
        animal.countTo(maxNumbers/2);
        return "End of printNumbers";
    }

    protected static void guessMyNumber(){
        int number;
        do {

            System.out.println("Guess number up to 100");

            while (!userInput.hasNextInt()){

                String numberEntered = userInput.next();
                System.out.printf("%s is not a number!\n", numberEntered);
            }

            number = userInput.nextInt();
        } while(number != 50); {
            System.out.println("You win!!!");
        }
    }

    public String makeSound() {

        return "Grrrr";

    }

    public static void speakAnimal(animal randAnimal) {
        System.out.println("Animal says: " + randAnimal.makeSound());
    }

    public static void main(String[] args) {
        animal theAnimal = new animal();
    }
}

cat.java

import java.util.*;

public class cat extends animal {

    public cat() {

    }

    public String makeSound() {
        return "Meow";
    }

    public static void main(String[] args) {

        /*
        animal fido = new dog();
        animal fluffy = new cat();

        animal[] animals = new animal[10];

        animals[0] = fido;
        animals[1] = fluffy;

        System.out.println(animals[0].getName() + " says: " + animals[0].makeSound());
        System.out.println(animals[1].getName() + " says: " + animals[1].makeSound());

        speakAnimal(animals[0]);
        */

        int[] favNums;
        favNums = new int[20];
        favNums[0] = 100;

        String[] stringArray = {"Random", "Words", "Here"};

        for(String word : stringArray) {

            System.out.println(word);

        }

        int[][][] arrayName = {{{10}, {20}, {30}},
                                {{120}, {130}, {140}},
                                {{230}, {240}, {250}}};

        for (int[][] part : arrayName){

            for (int[] p : part){

                for (int peice : p){

                    System.out.print("| " + String.valueOf(peice) + " ");

                }

            }

            System.out.println("|");

        }

        String[] cloneOfArray = Arrays.copyOf(stringArray, 3);

        System.out.println(Arrays.toString(cloneOfArray));

        System.out.println(Arrays.binarySearch(cloneOfArray, "Random"));

    }

}

dog.java

public class dog extends animal {

    public dog() {

    }

    public String makeSound() {
        return "Woof";
    }

}