Question

This code in java:

A typical ball is circular in shape. Many games are played with ball e.g cricket ball football etc. Impingement a scenario in which you create cricket ball and football or any other game ball. All balls differ in color, size and material

Answer 1

I have created a ball class, that represents the ball in general. A ball can be represented by its properties, like size, color, material, game, etc. As these properties are defined, we get the purpose of the ball. Similarly we can define a ball class having above properties. These properties of a ball can be set when defining a new ball object, or after the object is defined. once we have a ball class, we can define different objects representing different types of balls.

I have attached relevant comments in the example code below. I hope you find it helpful.

As an example, I have created two sample ball objects, cricketBall and football representing actual game balls.

public class ball {

    public static void main(String[] args) {
        Ball cricketBall = new Ball("cricket", "leather", "white", 10);
        Ball football = new Ball("football", "synthetic", "white", 50);

        System.out.println(cricketBall.getColour());
        System.out.println(football.getColour());
    }
}

class Ball {
    //colour of the ball
    private String colour;
    //size of the ball in cm
    private int size;
    //material of the ball
    private String material;
    //game where the ball is used
    private String game;

    //initialise the ball(any kind) with the following properties
    Ball(String game, String material, String colour, int size) {
        this.colour = colour;
        this.game = game;
        this.size = size;
        this.material = material;
    }

    /**
     * @return returns colour of the ball
     */
    public String getColour() {
        return colour;
    }

    // sets the colour of the ball
    public void setColour(String colour) {
        this.colour = colour;
    }

    //returns the size of the ball
    public int getSize() {
        return size;
    }
    // sets size of the ball
    public void setSize(int size) {
        this.size = size;
    }
    
    //returns the material of the ball
    public String getMaterial() {
        return material;
    }
    
    //sets the material of the ball
    public void setMaterial(String material) {
        this.material = material;
    }

    //returns the game where the ball is used
    public String getGame() {
        return game;
    }

    //sets the game property of the ball
    public void setGame(String game) {
        this.game = game;
    }
}