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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.util.stream.*;
  5. import java.lang.*;
  6. import java.io.*;
  7.  
  8. /* Name of the class has to be "Main" only if the class is public. */
  9. class Ideone
  10. {
  11. 	public static void main (String[] args) throws java.lang.Exception
  12. 	{
  13. 		Stream test = Arrays.asList(1, 2, 3)
  14. 		.stream();
  15. 		test.findFirst();
  16. 		test.forEach(x->System.out.println("HI!"));
  17. 	}
  18. }
Runtime error #stdin #stdout #stderr 0.25s 320832KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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Exception in thread "main" java.lang.IllegalStateException: stream has already been operated upon or closed
	at java.util.stream.AbstractPipeline.sourceStageSpliterator(AbstractPipeline.java:274)
	at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580)
	at Ideone.main(Main.java:16)
https://ideone.com/Lz8B86
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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