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  1. import javax.swing.JOptionPane;
  2. public class BemVindo4 {
  3.     public static void main(String[] args) {
  4.        JOptionPane.showMessageDialog(null,"Bem Vindo ao Java!");
  5.        System.exit(0);
  6.     }
  7. }
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:2: class BemVindo4 is public, should be declared in a file named BemVindo4.java
public class BemVindo4 {
       ^
1 error
stdout
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Standard output is empty
https://ideone.com/YSMC0
language:
Java (HotSpot 12)
created:
14 years ago
visibility:
public

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