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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.  
  13. 		String abc = "555-372-654-";
  14.     	String hello = abc.replaceAll("[^a-zA-Z0-9]", "");
  15.    		System.out.println(hello.replaceAll("(\\d{3})", "$1-"));
  16. 	}
  17. }
Success #stdin #stdout 0.11s 320576KB
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555-372-654-
https://ideone.com/juSraC
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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