Answers for "how to do a palindrome method in java"

7

Java program to check palindrome string using recursion

import java.util.Scanner;
public class RecursivePalindromeJava 
{
   // to check if string is palindrome using recursion
   public static boolean checkPalindrome(String str)
   {
      if(str.length() == 0 || str.length() == 1)
         return true; 
      if(str.charAt(0) == str.charAt(str.length() - 1))
         return checkPalindrome(str.substring(1, str.length() - 1));
      return false;
   }
   public static void main(String[]args)
   {
      Scanner sc = new Scanner(System.in);
      System.out.println("Please enter a string : ");
      String strInput = sc.nextLine();
      if(checkPalindrome(strInput))
      {
         System.out.println(strInput + " is palindrome");
      }
      else
      {
         System.out.println(strInput + " not a palindrome");
      }
      sc.close();
   }
}
Posted by: Guest on November-02-2020
0

integer palindrome in java

public boolean isPalindrome(int x) {
        String str = Integer.toString(x);
        String reverse =  new StringBuilder(str).reverse().toString();
        return  str.equals(reverse)?true:false;
     }
Posted by: Guest on April-26-2021

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