CanCode Hacks

// Unit 5 Hack
class Rectangle{

    private static int area;
    private static int perimeter;
    private static int sides;

    //public
    public static boolean quadrilateral;

    public Rectangle(int area, int perimeter, int sides){
        this.area = area;
        this.perimeter = perimeter;
        this.sides = sides; 
    }
    
    public int getArea(){
        return this.area; 
    }

    public int getSides(){
        if(sides == 4){
            isQuadrilateral();
        }
        return sides; 
    }

    public int getPerimeter(){  
        return this.perimeter;
    }

    public static boolean isQuadrilateral(){
        quadrilateral = true;
        System.out.println("Is it a quadrilateral: " + quadrilateral);
        return quadrilateral;
    }

    public String toString(){
        return ("Perimeter: " + this.perimeter + " Area: " + this.area);
    }

    public static void main(String args[]){
        Rectangle rect = new Rectangle(16,16,4);
        System.out.println(rect.toString());
        System.out.println(rect.getPerimeter());
        System.out.println(rect.getSides());

    }
}
Rectangle.main(null);

Perimeter: 16 Area: 16
16
Is it a quadrilateral: true
4

//Unit 9

//Hack 1
class Vehicle {
    public String name;
    public Vehicle(String name){
        this.name = name;
    }
    public void honk() {
        System.out.println("honk");
    }
    // methods and attributes
}
class Car extends Vehicle {
    public Car(String name) {
        super(name);
    }
    public String toString(){
        return name;
    }
    public static void main(String[] args) {
        Car car1 = new Car("big car");
        car1.honk();
        System.out.println(car1.toString());
    }
}
Car.main(null);


//Hack 2
public class animal {
    public String color;
    public animal(String color){
        this.color = color;
    }
    public void talk() {
        System.out.println("hi");
    }
}
public class rabbit extends animal{
    public int height;
    public rabbit(String color, int height) {
        super(color);
        this.height = height;
    }
    public void talk(){
        super.talk();
        System.out.println("hello");
    }
    public String toString() {
        return color + " " + height;
    }
}
public class pig extends animal {
    public int weight;
    public pig(String color, int weight) {
        super(color);
        this.weight = weight;
    }
    public void talk(){
        super.talk();
        System.out.println("oink");
    }
    public String toString(){
        return color + " " + weight;
    }
}
public class Main {
    public static void main(String[] args) {
        rabbit rabbit1 = new rabbit("white", 12);
        pig pig1 = new pig("pink", 1000);
        System.out.println(rabbit1.toString());
        System.out.println(pig1.toString());
        rabbit1.talk();
        pig1.talk();
    }
}
Main.main(null);

honk
big car
white 12
pink 1000
hi
hello
hi
oink

// Unit 10 Hacks
public class Fibonacci{
    public static int fibonacci(int n){
        if(n == 0){
            return 0;
        }
        else if(n == 1){
            return 1;
        }
        else{
            return fibonacci(n-1) + fibonacci(n-2);
        }
    }
    public static void main(String args[]){
        System.out.println("Fibonacci of 10: " + fibonacci(10));
    }
}
Fibonacci.main(null);

Fibonacci of 10: 55