If a user enters a diameter value in the variable diameter, how would we use this to draw the correct sized circle?var circle = new Circle(diameter);circle.setPosition(100,100);add(circle);var circle = new Circle(diameter*2);circle.setPosition(100,100);add(circle);var circle = new Circle(diameter/2);circle.setPosition(100,100);add(circle);var circle = new Circle(diameter%2);circle.setPosition(100,100);add(circle);

In the following code, we create a circle and add it to the screen. What is the meaning of the x variable? var x = 20; var circle = new Circle(x); add(circle); JavaScript The color of the circle The diameter of the circle The radius of the circle The position of the circle

18. If the following actions are taken:1. Circle object is chosen and selected a center/first point2. Click “diameter” in the command bar3. Input 300What will happen with the circle?a. The circle radius will be 300 unitsb. The circle diameter will be 150 unitsc. The circle radius will be 150 unitsd. The circle diameter will be 300 units

It looks like you're trying to create a Java program that calculates the diameter and area of a circle based on user input. I'll correct and complete your code. Here is a refined version:javaimport javax.swing.JOptionPane;public class Example { public static void main(String[] args) { // Prompt the user for the radius String response = JOptionPane.showInputDialog("Enter the radius of the circle:"); // Convert the response to an integer int radius = Integer.parseInt(response); // Calculate the diameter int diameter = 2 * radius; // Calculate the area double area = Math.PI * radius * radius; // Display the results String message = "Radius: " radius "\n" "Diameter: " diameter "\n" "Area: " area; JOptionPane.showMessageDialog(null, message); }}This code does the following:Prompts the user to input the radius of a circle using JOptionPane.showInputDialog.Converts the input string to an integer.Calculates the diameter of the circle.Calculates the area of the circle.Displays the radius, diameter, and area using JOv ptionPane.showMessageDialog.You can copy and paste this code into a Java IDE or a text editor and run it to see the results.Details

ClassCreate a class named Circle. This class will represent a circle and hold its properties and functionalities.In the class Circle, create a double-type variable named radius to represent the circle's radius.Create a method named setRadius that takes a double parameter representing the radius value and assigns it to the radius member variable.Create a method named calculateArea that takes no arguments and returns a double value.Inside the calculateArea method, use the formula area = Math.PI * radius * radius to calculate the area based on the stored radius value.

Main MethodCreate a main method in the same class:This method will be the entry point for your program and allow user interaction.Inside the main method:Create a Scanner object to read user input.Prompt the user to enter the circle's radius using System.out.print.Use the Scanner object's nextDouble method to read the user-entered radius and store it in a variable.Create a Circle object.Call the setRadius method of the Circle object, passing the user-entered radius as an argument.Call the calculateArea method of the Circle object and store the returned area value in a variable.Print the calculated area to the console using System.out.printlnSubmit the following: Screenshot of source code and output, and Java source code file.