Question

Hi i am trying to write a palindrome method but am getting the wrong results

public static boolean isPalindrome(String input){
    int b=input.length();
    int []array=new int[b];
    for(int i=0;i<array.length;i++){
        array[i]=Integer.parseInt(input);}


        for(int i=0;i<(array.length)/2;i++){
            if(!(array[i]==array[array.length-1-i])){
                    return false;}
        }

        return true;

    }
}

Answer 1

You can go for the simpler method to check for palindrome.

Use the StringBuilder class and use the .reverse() method to reverse the string and then check for palindrome test.

StringBuilder value1= new StringBuilder("nitin");
StringBuilder value2 = input.reverse();

if(value1.toString().equals(value2.toString()){
    System.out.println("This is a palindrome string ..");
}

Or you can go by this way also ..

public static boolean isPalindrome(String word) {
    int left  = 0;                 
    int right = word.length() -1;  

    while (left < right) {         
        if (word.charAt(left) != word.charAt(right)) {
            return false;          
        }
        left++;                    
        right--;                   
    }

    return true;                   
}