Thread: Trouble with getting middle characters from a string.

Can someone please help and tell me what i am doing wrong that makes my first test input fail? When the "hello" is entered it is only to return "l" but with my program it returns "llo". Below is my code and the test results.

My Code

public*class*MiddleTest
{
***/**
******Gets*the*middle*character*or*character*pair* from*this*string*
******when*possible.
******@param*str*a*string
******@return*the*middle*character*(if*the*string* length*is*odd)*or
******the*middle*two*characters*(if*it*is*even),*o r*the*empty*string*if*str*is
******empty.
****/
***public*static*String*getMiddle(String*str)
***{
****
*****if*((str.length()*%*2)*==*0)
*{
*//Even*length
**if*(str.length()*>*2)
***{
*return*str.substring(*str.length()*/*2*-*1,*str.length()*/*2*+1);
***}
*}
*//Odd*length
*return*str.substring(str.length()*/*2);
***}
}

Test Results

Parameters Actual Return Expected Return Outcome
hello llo l fail
help el el pass
l l l pass
pass

I am having a problem getting my first test result to work (which you can see below). When the string is "hello" it returns "llo" instead of "l". What is wrong in my code that is causing this to happen? My code and test results are as follows:

My code:

 
public class MiddleTest
{
   /**
      Gets the middle character or character pair from this string 
      when possible.
      @param str a string
      @return the middle character (if the string length is odd) or
      the middle two characters (if it is even), or the empty string if str is
      empty.
   */
   public static String getMiddle(String str)
   {
 
     if ((str.length() % 2) == 0)
	 {
	 //Even length
	  if (str.length() > 2)
	   {
	 return str.substring( str.length() / 2 - 1, str.length() / 2 +1);
	   }
	 }
	 //Odd length
	 return str.substring(str.length() / 2);
   }
}

Test Results

Test Results

Parameters Actual Expected Outcome
hello llo l fail
help el el pass
l l l pass
pass