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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.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		String strings[] = { "aaabbaa", "aaxxaab", "xaaaaax" };
  13.     	for (String s : strings) {
  14.     		System.out.println(s.replaceAll("(?<=^a{1,100})a", "-"));	
  15.     	}
  16. 	}
  17. }
Success #stdin #stdout 0.06s 33620KB
comments (?)
stdin 
Standard input is empty
stdout 
a--bbaa
a-xxaab
xaaaaax
https://ideone.com/UXiTcq
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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