Define HTML and discuss how it works.

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Abstract classes & Interfaces (Ch13) 5. See the code below and solve the following. class Circle { protected double radius; // Default constructor public Circle() ( } this(1.0); // Construct circle with specified radius public Circle(double radius) { } this.radius radius; // Getter method for radius public double getRadius() { } return radius; // Setter method for radius public void setRadius(double radius) { } this.radius = radius; // Implement the findArea method defined in GeometricObject public double findArea() { } return radius* radius * Math. PI; // Implement the find Perimeter method defined in GeometricObject public double findPerimeter() { } return 2*radius*Math.PI; // Override the equals() method defined in the Object class public boolean equals(Circlel circle) { } return this.radius == circle.getRadius(); // Override the toString() method defined in the Object class public String toString() { } } return "[Circle] radius = " + radius; 5-1. Define a class name…

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Chapter 4, Problem 11RQ

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Define HTML and discuss how it works.

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Abstract classes & Interfaces (Ch13) 5. See the code below and solve the following. class Circle { protected double radius; // Default constructor public Circle() ( } this(1.0); // Construct circle with specified radius public Circle(double radius) { } this.radius radius; // Getter method for radius public double getRadius() { } return radius; // Setter method for radius public void setRadius(double radius) { } this.radius = radius; // Implement the findArea method defined in GeometricObject public double findArea() { } return radius* radius * Math. PI; // Implement the find Perimeter method defined in GeometricObject public double findPerimeter() { } return 2*radius*Math.PI; // Override the equals() method defined in the Object class public boolean equals(Circlel circle) { } return this.radius == circle.getRadius(); // Override the toString() method defined in the Object class public String toString() { } } return "[Circle] radius = " + radius; 5-1. Define a class name…

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