Thread: removing special characters from a string, and help finding an extra space in string output

d

The array at position 2 (the a) has not a real char value. So you must either:

	    // stepthrough the sentence array, get the first character
	    // of each string @ each index, and store in firstLetters array
	    for (int x = 0; x < sentence.length; x++)
	    { 
	      // only grab the 1st letter if word is > 1 character in length
	      if (sentence[x].length() > 1)
	      {
	        firstLetters[x] = sentence[x].charAt(0);
	      }else{
	    	  firstLetters[x] = ' ';
	      }
	    }

fill it with a default ' ' at the above position of your code or you must check against the int value of a char. In java a char is an int value, simply said

	    // append the letter @ each index in firstLettersp[] array to the end of
	    // each word @ ea. relative index in sentence[x] array
	    for (int x = 0; x < sentence.length; x++)
	    {
	      if ( firstLetters[x] != 0)
	      {
	       sentence[x] = sentence[x] + firstLetters[x];
	      }
	    }

Try to output (int) aChar for a better understanding of it. It's a kind of working with ascii-tables and so on.

Looks like the error starts earlier:

sentence[]: [i, have, a, dog]

firstLetters array: [ , h, , d]

The first letters are white space. You need to trim it at that point.