Calculate the area and diameter of Circle Program plan: Filename: “Circle.java” Define the “Cirle” class Declare the required variables. Define constructor Set the radius value as 1. Call the “calc” method. Define the “setRadius” method Set the value Call the “calc” method Define the “getRadius” method Return the radius Define the “getDiameter” method Return the diameter Define the “getArea” method Return the area Define the “calc” method Calculate the diameter of the circle Calculate the area of the circle. Filename: “TestCircle.java” Define the “TestCircle” class Define the main method. Create the objects for “Circle” class Call the “setRadius” method with different values Call the “display” method Define the “display” method Display the radius, diameter, and area of the circle.

Question

Add a timer in the following code. public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; private Timer timer; private long elapsedTime; public GameGUI(Labyrinth labyrinth, Player player, Dragon dragon) { this.labyrinth = labyrinth; this.player = player; this.dragon = dragon; String playerName = JOptionPane.showInputDialog("Enter your name:"); player.setName(playerName); elapsedTime = 0; timer = new Timer(1000, e -> { elapsedTime++; repaint(); }); timer.start(); } @Override protected void paintComponent(Graphics g) { super.paintComponent(g); int cellSize = Math.min(getWidth() / labyrinth.getSize(), getHeight() / labyrinth.getSize());}

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Question

Chapter 4, Problem 6PE

Program Plan Intro

Calculate the area and diameter of Circle

Program plan:

Filename: “Circle.java”

Define the “Cirle” class

Declare the required variables.

Define constructor

Set the radius value as 1.

Call the “calc” method.

Define the “setRadius” method

Set the value

Call the “calc” method

Define the “getRadius” method

Return the radius

Define the “getDiameter” method

Return the diameter

Define the “getArea” method

Return the area

Define the “calc” method

Calculate the diameter of the circle

Calculate the area of the circle.

Filename: “TestCircle.java”

Define the “TestCircle” class

Define the main method.

Create the objects for “Circle” class

Call the “setRadius” method with different values

Call the “display” method

Define the “display” method

Display the radius, diameter, and area of the circle.

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