LeetCode Top Interview Questions 9. Palindrome Number (Java版; Easy) 题目描述 Determine whether an integer is a palindrome. An integer is a palindrome when it reads the same backward as forward. Example 1: Input: 121 Output: true Example 2: Input: -121 Output: false Explanation: From left...
Explanation: Reads 01 from right to left. Therefore it is not a palindrome. 【注意】 Follow up: Coud you solve it without converting the integer to a string? staticbooleanisPalindrome(intnum){if(num<0){returnfalse;}if(num<0){returntrue;}intdivisor=1;while(num/divisor>=10){divisor*=10...
那例外两个看一起一定一模一样的。 Java代码例如以下: public class Solution { public boolean isPalindrome(int x) { int t=x; int re=0; if(x<0) //1. 负数无法为回文 return false; while(t>0) //2. 推断是否将t的全部位数取完 { re = re*10+t%10; //3. 将t的最后一位拼接在re的后...
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...
Java代码例如以下: publicclassSolution{publicbooleanisPalindrome(intx){intt=x;intre=0;if(x<0)//1. 负数无法为回文returnfalse;while(t>0)//2. 推断是否将t的全部位数取完{re=re*10+t%10;//3. 将t的最后一位拼接在re的后面t=t/10;}returnx==re;//4. 将两数进行比較并返回结果}} ...
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Check Palindrome Number using Java program//Java program for Palindrome Number. import java.util.*; public class Palindrome { public static void main(String args[]){ int num,tNum,sum; Scanner bf=new Scanner(System.in); //input an integer number System.out.print("Enter any integer number:...
Here, we are going to learn how to check whether a given number is palindrome or not in JavaScript.
Write a Java program to check if a positive number is a palindrome or not. Pictorial Presentation: Sample Solution: Java Code: importjava.util.*;publicclasstest{publicstaticvoidmain(String[]args){intnum;// Create a Scanner object for user inputScannerin=newScanner(System.in);// Prompt the ...
prime number, palindrome or this one?