ok so i'm working on a program that takes a string and returns a boolean if it is a palidrome. everything appears to be working except for the extra garbage i get at the end of my array. so this is what i have

String target = "abaaba";
//String dict[];

void setup(){
 // dict = loadStrings("words");
 print(pali(target));
}


boolean pali (String target){
char[] tar = new char[target.length()];
char t;
 for(int i=0;i< target.length() ;i++){
   tar = splice(tar, t= target.charAt(i),i);
 }

 println(tar);
 if (tar == reverse(tar)){  
   return(true);
 }
 return(false);
}

and when i print my array it shows:
[0] 'a'
[1] 'b'
[2] 'a'
[3] 'a'
[4] 'b'
[5] 'a'
[6] ' '  //in the actual print out in the program there are little squares
[7] ' '  //here
[8] ' '
[9] ' '
[10] ' '
[11] ' '

any help would be greatly appreciated.