fork(1) download
  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. String s = "50.000\n50\n50.100\n50.040\n50.\n50.000\n50.500\n50\n-5\n-5.0005";
  13. System.out.println(s.replaceAll("(?m)^(-?\\d+)(?:\\.0+|(\\.\\d*?)0+|\\.+)?$", "$1$2"));
  14. }
  15. }
Success #stdin #stdout 0.1s 320512KB
stdin
Standard input is empty
stdout
50
50
50.1
50.04
50
50
50.5
50
-5
-5.0005