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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 String left2(String str)
  11.     {
  12.          return str.substring(2)+str.substring(0,2);
  13.     }
  14. 	public static void main (String[] args) throws java.lang.Exception
  15. 	{
  16. 		left2("a");
  17. 	}
  18. }
Runtime error #stdin #stdout #stderr 0.07s 380224KB
comments (?)
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:1875)
	at Ideone.left2(Main.java:12)
	at Ideone.main(Main.java:16)
https://ideone.com/pmNyNS
language:
Java (HotSpot 12)
created:
12 years ago
visibility:
public

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