How could I get my program to check if a word is a palindrome irrespective of the case entered by the user

Question

import java.util.Scanner;
public class Pailindrome {
    public static void main(String[] args) {
        Scanner sc1 = new Scanner(System.in);
        System.out.println("Please enter a word");
        String ori = sc1.nextLine();
        isPailindrome(ori);
        if (isPailindrome(ori))
            System.out.println(ori + "is a Pailindrome");
        else
            System.out.println(ori + "is NOT a Pailindrome");
    }
    public static boolean isPailindrome(String ori) {
        int i = 0;
        int j = ori.length() - 1;
        while (i < j) {
            if (ori.charAt(i) != ori.charAt(j)) {
                return false;
            }
            i++;
            j--;
        }
        return true;
    }
}

The code works perfectly I'm just confused how I will get it to work irrespective of the case inputted by the user. For example aBba is a palindrome but It says it's not in the code I've done. I would like any help if possible thanks.

Answer 1

You can convert all of the letters to lowerCase before you start the processing.

You can write your own function or use toLowerCase() String function.

import java.util.Scanner;
public class Pailindrome {
 public static void main(String[] args) {
  Scanner sc1 = new Scanner(System.in);
  System.out.println("Please enter a word");
  String ori = sc1.nextLine();
  ori = ori.toLowerCase();
  isPailindrome(ori);
  if (isPailindrome(ori))
 }
 System.out.println(ori + "is a Pailindrome");
} else {
 System.out.println(ori + "is NOT a Pailindrome");
}
}
public static boolean isPailindrome(String ori) {
 int i = 0;
 int j = ori.length() - 1;
 while (i < j) {
  if (ori.charAt(i) != ori.charAt(j)) {
   return false;
  }
  i++;
  j--;
 }
 return true;
}