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  1. import java.util.regex.Matcher;
  2. import java.util.regex.Pattern;
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. class Ideone
  8. {
  9.     public static void main(String args[]) {
  10.         String exp = "2x^3+4x^2+5x-42";
  11. 		Pattern pattern = Pattern.compile("([+-]?[^-+]+)");
  12. 		Matcher matcher = pattern.matcher(exp);
  13. 		int x=0;
  14. 		while (matcher.find()) {
  15. 			x=x+1;
  16. 		    System.out.println("Group "+x+": " + matcher.group(1));
  17. 		}
  18.     }
  19. }
Success #stdin #stdout 0.1s 320512KB
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stdin
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Standard input is empty
stdout
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Group 1: 2x^3
Group 2: +4x^2
Group 3: +5x
Group 4: -42
https://ideone.com/cgaleS
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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