Agfdhyk

From the title you can see what I'm trying to do, however it's not working and I'm not sure why. Who has any ideas or simpler way to do this method?
(without using string builder and all that extra stuff)

public char reverseStringToArray(String str)

{



   char reverseStringToArray  = str.toCharArray();



   char characters = new char[reverseStringToArray.length];



   for (int i = reverseStringToArray.length - 1; i >= 0; i--)



       characters[i] = reverseStringToArray[i];



   return reverseStringToArray;

}

StringBuilder has a useful method reverse(), you can use that and then convert to a char. Like,

return new StringBuilder(str).reverse().toString().toCharArray();

If you must implement your own array reverse here, it's important to know not to reverse elements beyond the half-way mark (why? because you will reverse them and then reverse them back). Note that you also need to perform a full swap or you'll lose half of your input. That is, it should look something like,

char rsa = str.toCharArray();

for (int i = 0; i < rsa.length / 2; i++) {

    char ch = rsa[i];

    rsa[i] = rsa[rsa.length - i - 1];

    rsa[rsa.length - i - 1] = ch;

}

return rsa;