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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.regex.*;
  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. 		String n="[a]-[a-gamma]";
  14.         System.out.println(n.replaceAll("-(?=[^\\[\\]]*\\])", "_"));
  15.  
  16. 	}
  17. }
Success #stdin #stdout 0.1s 320320KB
comments (?)
stdin 
Standard input is empty
stdout 
[a]-[a_gamma]
https://ideone.com/leB7Su
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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