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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.util.regex.*;
  5.  
  6. import java.lang.*;
  7. import java.io.*;
  8.  
  9. /* Name of the class has to be "Main" only if the class is public. */
  10. class Ideone
  11. {
  12. public static void main (String[] args) throws java.lang.Exception
  13. {
  14. Pattern p = Pattern.compile("[0-9]*\\.?[0-9]+");
  15. Matcher m = p.matcher("1.2+3.4*(3.2+2.3)-12.1/3.4*1.8+5.7");
  16. while (m.find()) {
  17. System.out.println(m.group());
  18. }
  19. }
  20. }
Success #stdin #stdout 0.07s 380224KB
stdin
Standard input is empty
stdout
1.2
3.4
3.2
2.3
12.1
3.4
1.8
5.7