The Circle Area Calculator

      


import java.util.Scanner;

public class CircleAreaApp {
  static Scanner sc = new Scanner(System.in);

  public static void main(String[] args) {
    System.out.print("Enter the radius of your circle: ");
    double r = sc.nextDouble();
    double area = Math.PI * (r * r);
    System.out.println("The area is " + area);
  }
}

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The Circle Area Calculator : double « Data Type « Java

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