Question

java.

Question 2: Practice Polymorphism- Food A

Assume you have a parent class called Food with one instance data variable: private String name. The class has one constructor that takes the name as a parameter, getters and setters for name, and a toString that outputs the name.

• Write a child class called Vegetable with one additional variable describing whether or not the vegetable is green.
• Write two constructors: one that takes in all information about a vegetable and one that uses a default value to indicate that a vegetable IS green.
• Write getters and setters, a toString, and an equals method.

Answer 1

class Vegetable extends Food {

    private boolean isGreen;

    public Vegetable(String name) {
        this(name, true);
    }

    public Vegetable(String name, boolean isGreen) {
        super(name);
        this.isGreen = isGreen;
    }

    public boolean isGreen() {
        return isGreen;
    }

    public void setGreen(boolean green) {
        isGreen = green;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Vegetable vegetable = (Vegetable) o;
        return getName().equals(vegetable.getName()) && isGreen == vegetable.isGreen;
    }

    @Override
    public String toString() {
        return "Vegetable{" + "name='" + getName() + "'" + "isGreen=" + isGreen + '}';
    }
}