fork download 
  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4. import java.util.regex.*;
  5.  
  6. class Ideone
  7. {
  8. 	public static void main (String[] args) throws java.lang.Exception
  9. 	{
  10. 		String sentence = "4-2-3-1";
  11. 		Pattern pCode = Pattern.compile("\\b\\d(?:\\s?-\\s?\\d){2,}\\b");
  12. 		Matcher mCode = pCode.matcher(sentence);
  13. 		String result = mCode.replaceAll(x -> x.group().replace("-", " ") );
  14. 		System.out.println( result );
  15. 	}
  16. }
Success #stdin #stdout 0.08s 33908KB
comments (?)
stdin 
Standard input is empty
stdout 
4 2 3 1
https://ideone.com/0yWFdD
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!