336. Palindrome Pairs Given a list of unique words, find all pairs of distinct indices (i, j) in the given list, so that the concatenation of the two words, i.e. words[i] + words[j] is a palindrome. Given words = ["abcd", "dcba", "lls", "s", "sssll"] Return [[0, 1]...
// Java code for checking string palindrome public class Main { //function to check whether string is Palindrome or not public static boolean isPalindrome(String str) { // Checking for null if (str == null) { throw new IllegalArgumentException("String is null."); } // length of the ...
Learn how to check if a string is a palindrome in Java with this comprehensive guide and code examples.
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...
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...
StringBuilder in = new StringBuilder(); int a = x; while(a!=0) { in.append(a%10); a/=10; } String o = String.valueOf(x); if(o.equals(in.toString())) { return true; }else { return false; } } } 1. 2. 3. 4.
Java实现LeetCode_0009_PalindromeNumber packagejavaLeetCode_primary;importjava.util.Scanner;importjava.util.Stack;publicclassPalindromeNumber_9{publicstaticvoidmain(String[] args){@SuppressWarnings("resource")Scannerinput=newScanner(System.in); System.out.println("Please input the integer:");intx=input...
[Leetcode] Shortest Palindrome 最短回文拼接法 Shortest Palindrome Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. Find and return the shortest palindrome you can find by performing this transformation....
import java.util.*; import java.lang.*; class Seventeen { public static void main(String args[]) { Scanner sc=new Scanner(System.in); String str=sc.next(); String reverse = new StringBuffer(str).reverse().toString(); if(str.equals(reverse)) ...
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...