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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.Scanner;
  4.  
  5. public class Media {
  6.  
  7.  
  8.     public static void main(String[] args) {
  9.         // TODO code application logic here
  10.  
  11.         Scanner ent = new Scanner(System.in);
  12.         double nota1, nota2, nota3;
  13.         double media;
  14.  
  15.             // recebe a 1º nota
  16.             System.out.println("digite sua 1ª nota");
  17.             nota1 = ent.nextDouble();
  18.  
  19.             // recebe a 2º nota
  20.             System.out.println("digite sua 2ª nota");
  21.             nota2 = ent.nextDouble();
  22.  
  23.             // recebe a 3º nota
  24.             System.out.println("digite sua 3ª nota");
  25.              nota3 = ent.nextDouble();
  26.  
  27.             // calcula a média
  28.             media = (nota1 + nota2 + nota3) / 3;
  29.             System.out.println("A média do aluno é " + media);
  30.  
  31.     }
  32.  
  33. }
  34.  
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
Main.java:5: error: class Media is public, should be declared in a file named Media.java
public class Media {
       ^
1 error
stdout
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Standard output is empty
https://ideone.com/OsxOuv
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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