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- import java.util.Scanner;
- class Main {
- public static void main(String[] args) {
- Scanner scan=new Scanner(System.in);
- final double PI = 3.14159;
- System.out.println("Please enter an int for the first radius: ");
- int radius = scan.nextInt();
- int radius2 = radius*2;
- double area = PI * radius * radius;
- double circumference= PI* radius*2;
- double area2, circumference2;
- System.out.println("The area of a circle with radius " + radius +" is " + area);
- System.out.println("The circumference of a circle with radius " + radius +" is " + circumference);
- area2 = PI * radius2 * radius2;
- circumference2= PI* radius2*2;
- System.out.println("The area of a circle with radius " + radius2 +" is " + area2);
- System.out.println("The circumference of a circle with radius " + radius2 +" is " + circumference2);
- }
- }
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