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  1. import java.util.Scanner;
  2.  
  3. class Exercicio3 {
  4.  
  5.     public static void main(String[] args) {
  6.        System.out.println("Escreva o valor do raio");
  7.        Scanner scan = new Scanner(System.in);
  8.  
  9.        double raio = scan.nextFloat();
  10.        double area = Math.PI * raio * raio;
  11.  
  12.        System.out.println("O valor da area é " + area);
  13.     }
  14. }
Success #stdin #stdout 0.1s 31208KB
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Escreva o valor do raio
O valor da area é 314.1592653589793
https://ideone.com/1I2vC5
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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