Check String is palindrome using Stack

Input String "ababXbaba"

public boolean isPalindrome(String inputStr) throws Exception {

char inputChar[] = inputStr.toCharArray();

DynamicArrayStack s = new DynamicArrayStack(4);

int i = 0;

while (inputChar[i] != 'X') {

s.push(inputChar[i]);

i++;

}

i++;

while (i < inputChar.length) {

if (s.isEmpty()) {

return false;

}

if (inputChar[i] != (s.pop())) {

return false;

}

i++;

}

return true;

}