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  1. import java.util.*;
  2.  
  3. class Ideone
  4. {
  5. 	public static void main (String[] args) throws java.lang.Exception
  6. 	{
  7. 		String regex = "\\s+\\z|\\z(?<!\\s)";
  8. 		System.out.println("foo.".equals("foo".replaceAll(regex, ".")));
  9. 		System.out.println("foo.".equals("foo ".replaceAll(regex, ".")));
  10. 		System.out.println("foo.".equals("foo  ".replaceAll(regex, ".")));
  11. 		System.out.println(" foo.".equals(" foo  ".replaceAll(regex, ".")));
  12. 	}
  13. }
Success #stdin #stdout 0.12s 48220KB
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true
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https://ideone.com/5QWfe4
language:
Java (HotSpot 12)
created:
2 years ago
visibility:
secret

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