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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6. import java.util.stream.IntStream;
  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. 		// your code goes here
  14. 		IntStream chars = "bookkeep".chars();
  15. 		System.out.println(chars.count());
  16. 		chars.distinct().sorted().forEach(ch -> System.out.printf("%c ", ch));
  17. 	}
  18. }
Runtime error #stdin #stdout #stderr 0.14s 2184192KB
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stdin
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Standard input is empty
stdout
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8
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.<init>(AbstractPipeline.java:203)
	at java.util.stream.ReferencePipeline.<init>(ReferencePipeline.java:94)
	at java.util.stream.ReferencePipeline$StatelessOp.<init>(ReferencePipeline.java:618)
	at java.util.stream.IntPipeline$4.<init>(IntPipeline.java:244)
	at java.util.stream.IntPipeline.mapToObj(IntPipeline.java:243)
	at java.util.stream.IntPipeline.boxed(IntPipeline.java:220)
	at java.util.stream.IntPipeline.distinct(IntPipeline.java:397)
	at Ideone.main(Main.java:16)
https://ideone.com/LP0hGt
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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