import java.util.*; public class Example1 { public static void main(String[] args) { // creating an instance of Scanner class Scanner sc=new Scanner(System.in); System.out.println("Enter a number to check palindrome: "); // to take input from user int num = sc.nextInt(); // co...
1. Introduction In this article, we’re going to see how we can check whether a givenStringis a palindrome using Java. A palindrome is a word, phrase, number, or other sequences of characters which reads the same backward as forward, such as “madam” or “racecar”. 2. Solutions In...
import java.util.function.Predicate; public class Main { public static void main(String[] args) { // Define the palindrome check lambda expression Predicate < String > isPalindrome = str -> { String reversed = new StringBuilder(str).reverse().toString(); return str.equals(reversed); }; /...
In this tutorial we show several ways to check if a string is a palidrome in Java. 在本教程中,展示了几种检查字符串是否是Java回文的方法 Java Palindrome with StringBuilder TheStringBuilder'sreversemethod causes this character sequence to be replaced by the reverse of the sequence. packagecom.zetc...
Another method to check if a string is a palindrome or not is by using aforloop. Below are the steps to check if a string is a palindrome in JavaScript. functionpalindromeFn(string){conststringLength=string.length;for(leti=0;i<stringLength/2;i++){if(string[i]!==string[stringLength-1...
Check palindrome number in javaimport java.util.Scanner; class CheckNumberPalindromeOrNotPalindromeClass{ public static void main(String[] args){ //rev variable is used to store reverse of actual_num //actual_num contains number accepted from user //temp_num variable is used for temporary ...
Here, we are going to learn how to check whether a given number is palindrome or not in JavaScript.
classSolution {publicbooleanisPalindrome(intx) {if(x<0//negative number|| (x%10 == 0 && x != 0))//the check"x == reverseNum/10" has one exception: reverseNum is one-bit number but x isn't, this case only exist in x%10 == 0 && x != 0returnfalse;intreverseNum = 0;whil...
Below image shows the output of the above longest palindrome java program. We can improve the above code by moving the palindrome and longest lengths check into a different function. However, I have left that part for you. :) Please let me know if there are any other better implementations...
The first method you can comeup with is check every substring, which will take O(n^3) time. Can we do better? We know that one character is a palindrome itself, we also know that if S[i+1][j-1] is a palindrome and S[i] == S[j], S[i][j] is a palindrome. In this way...