number palindrome code example
Example 1: palindrome number in java
import java.util.Scanner;
public class Palindrome
{
public static void main(String args[])
{
int num,temp,reverse=0;
Scanner input=new Scanner(System.in);
num=in.nextInt();
temp=num;
while(temp!=0)
{
int d=temp%10;
reverse=reverse*10+d;
temp/=10;
}
if(reverse==num)
{
System.out.println("Number is palindrome");
}
else
{
System.out.println("Number is not palindrome");
}
}
}
Example 2: check if palindrome
function isPalindrome(str) {
str = str.toLowerCase();
return str === str.split("").reverse().join("");
}
Example 3: palindrome
#include<iostream>
#include<string>
#include<algorithm>
bool IsPalindrome_true_false(const std::string& );
int main ()
{
std::cout<<"Please enter a string:\t";
std::string str;
getline(std::cin, str);
int i = 0;
while(str[i])
{
if(str[i] == std::toupper(str[i]) && std::isalpha(str[i]) == 1024)
str[i]+= 32;
++i;
}
while(str.empty())
{
std::cout<<"\nPlease enter a string your string is empty:\t";
if(!str.empty())
std::string str;
getline(std::cin, str);
}
std::cout<<"\n"<<std::boolalpha<<IsPalindrome_true_false(str)<<std::endl;
std::cout<<std::endl;
return 0;
}
bool IsPalindrome_true_false(const std::string& str)
{
int i = 0;
int j = str.length() - 1;
while(i <= j )
{
if(std::isalpha(str[i]) == 0){
++i;
continue;
}else if(std::isalpha(str[j]) == 0){
--j;
continue;
}
if(str[i] != str[j]){
return false;
}
++i;
--j;
}
return true;
}
Example 4: palindrome
#include <stdio.h>
int main() {
int n, reversedN = 0, remainder, originalN;
printf("Enter an integer: ");
scanf("%d", &n);
originalN = n;
while (n != 0) {
remainder = n % 10;
reversedN = reversedN * 10 + remainder;
n /= 10;
}
if (originalN == reversedN)
printf("%d is a palindrome.", originalN);
else
printf("%d is not a palindrome.", originalN);
return 0;
}