Palindrome Java
A palindrome is a word, phrase, number, or other sequence of symbols or elements, whose meaning may
be interpreted the same way in either forward or reverse direction.
Examples: 2222, 3333, aca, ada
Find Palindrome string java without using Java API
public class PalindromeStringCheck { /** * @param args */ public static void main(String[] args) { String word = "aba"; char[] charArray = word.toCharArray(); System.out.println(istPalindrom(charArray)); } public static boolean istPalindrom(char[] word){ int i1 = 0; int i2 = word.length - 1; while (i2 > i1) { if (word[i1] != word[i2]) { return false; } ++i1; --i2; } return true; } }
Palindrome Java: Find Palindrome number in java without using API
public class PalindromeNumberCheck { public static void main(String args[]) { System.out.println(isPalindrome(2222)); } private static boolean isPalindrome(int number) { if (number == reverse(number)) { return true; } return false; } private static int reverse(int number) { int reverse = 0; while (number != 0) { reverse = reverse * 10 + number % 10; number = number / 10; } return reverse; } }
