Question

Java’s class Color has a constructor that takes three integers as parameters: the red, green, and blue components of the color. A class Balloon has two fields: double radius and Color color. Write a constructor for the Balloon class that takes no parameters and sets the balloon’s radius to 10 and its color to "sky blue" (with RGB values 135, 206, and 250).

Answer 1

Answer:

    public Balloon(){

          //Invokes the 2 argument constructor for balloon with relevant  

          //parameters

          this(10,new Color(135,206,250));

    }

Explanation:

class Balloon{

    //Private fields in the Balloon class

    private double radius = 0;

    private Color c = null;

    // Constructor with two arguments - radius and Color

    public Balloon(double radius,Color c){

         this.radius = radius;

         this.c = c;

    }

    // No argument constructor

    public Balloon(){

          //Invokes the 2 argument constructor for balloon with relevant  

          //parameters

          this(10,new Color(135,206,250));

    }

}