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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Ideone
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		String str = " text\n \n \n text"; 
  10. 		System.out.println(str.replaceAll("(?m)^[\\p{Zs}\t]+$", "").replace("\n", "\\n"));
  11. 	}
  12. }
Success #stdin #stdout 0.04s 711168KB
comments (?)
stdin 
Standard input is empty
stdout 
 text\n\n\n text
https://ideone.com/3rKYdo
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
secret

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