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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)
  11. 	{
  12. 		String input = "133+23d-=";
  13.         String output = input.replaceAll("(?<=\\D)|(?=\\D)", " ");
  14. 		System.out.printf("'%s'", output);
  15. 	}
  16. }
Success #stdin #stdout 0.04s 711168KB
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stdin
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Standard input is empty
stdout
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'133 + 23 d - = '
https://ideone.com/hzgjPb
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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