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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4.  public class HelloWorld {
  5.  
  6.        public static void main(String[] args) {
  7.  
  8.         System.out.println("Hello,World!");
  9.  
  10.        }
  11.  
  12.   }
  13.  
Compilation error #stdin compilation error #stdout 0s 0KB
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Standard input is empty
compilation info 
Main.java:4: error: class HelloWorld is public, should be declared in a file named HelloWorld.java
 public class HelloWorld {
        ^
1 error
stdout
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Standard output is empty
https://ideone.com/x0L9ZU
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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