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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) throws java.lang.Exception
  11. {
  12. String str = "1626b3510066d574";
  13. String newValue = Long.toString(Long.parseLong(str.substring(str.length() - 8, str.length()), 16));
  14. newValue.substring(newValue.length() - 8, newValue.length());
  15.  
  16.  
  17. System.out.println(newValue );
  18. }
  19. }
Runtime error #stdin #stdout #stderr 0.05s 711168KB
stdin
Standard input is empty
stdout
Standard output is empty
stderr
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: -1
	at java.lang.String.substring(String.java:1948)
	at Ideone.main(Main.java:14)