Using Java DOWN BELOW IS THE CODE ----------------------------------------------

Question

Using Java

DOWN BELOW IS THE CODE

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IV. Problem 3: 13.7 (revised): he Colorable interface) Design an interface named (The Colorable interface) Design an interface named Colorable with a void method named how ToColor (). Every class of a colorable object must implement the Colorable interface. Design a class tand implement Implement how ToColor to display the message "Color all four sides". Write a test program that creates two Squares with 5 and 5.5 as the sides. For each square, display its area and invoke its how ToColor method

Explanation / Answer

public class exam4p3Exercise13_07{
public static void main(String[] args) {
GeometricObject object1 = new Square(5);
GeometricObject object2 = new Square(5.5);

System.out.println("object1 Area is " + object1.getArea());
((Colorable)object1).howToColor();
//Some more instructions here!
  
System.out.println("object1 Area is " + object2.getArea());
((Colorable)object2).howToColor();
//Some more instructions here!
}
}

interface Colorable {
//You Complete this ....
void howToColor();
}

abstract class GeometricObject
{
public abstract double getArea();
public abstract double getPerimeter();
}

class Square extends GeometricObject implements Colorable//You complete this line
{
private double side;

public Square(double side) {
this.side = side;
}

@Override
public void howToColor() {
//You Complete this ....
System.out.println(" Color all four sides");
}

@Override
public double getArea() {
return side * side;
}

@Override
public double getPerimeter() {
return 4 * side;
}
}

Output:

object1 Area is 25.0

Color all four sides
object1 Area is 30.25

Color all four sides

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