fork(2) download
  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. import java.math.BigInteger ;
  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. String input = "ffffffff-ffff-ffff-ffff-ffffffffffff" ;
  15. String uuidWithoutDashes = input.replaceAll( "-" , "" );
  16. BigInteger bi = new BigInteger( uuidWithoutDashes , 16 );
  17. String output = bi.toString() ;
  18. int digitCount = output.codePoints().toArray().length ;
  19.  
  20. System.out.println( bi ) ;
  21. System.out.println( digitCount ) ;
  22. }
  23. }
Success #stdin #stdout 0.08s 49208KB
stdin
Standard input is empty
stdout
340282366920938463463374607431768211455
39