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cgorrillaha

AreaClean

Sep 14th, 2020
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Java 1.07 KB | None | 0 0
  1. import java.util.Scanner;
  2.  
  3. class Main {
  4.   public static void main(String[] args) {
  5.     //declarations at the top
  6.     Scanner scan=new Scanner(System.in);
  7.     final double PI = 3.14159;
  8.     int radius, radius2;
  9.     double area, area2, circumference, circumference2;
  10.  
  11.     //inputs: read in a radius and double that radius
  12.     System.out.println("Please enter an int for the first radius: ");
  13.      radius = scan.nextInt();
  14.      radius2 = radius*2;
  15.  
  16.     //calculations: calculate area and circumference 1+2
  17.      area = PI * radius * radius;
  18.      circumference= PI* radius*2;
  19.      area2 = PI * radius2 * radius2;
  20.      circumference2= PI* radius2*2;
  21.  
  22.     //output the results
  23.      System.out.println("The area of a circle with radius " + radius +" is " + area);
  24.     System.out.println("The circumference of a circle with radius " + radius +" is " + circumference);
  25.      
  26.      System.out.println("The area of a circle with radius " + radius2 +" is " + area2);
  27.      System.out.println("The circumference of a circle with radius " + radius2 +" is " + circumference2);
  28.  
  29.   }
  30. }
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