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palindromic number वो numbers होते हैं जिनके digits reverse करने पर meaning / value same ही रहती है। example के लिए 2002 इसे reverse करने पर भी इसकी value same ही रहेगी। इसी तरह से 1221 और बाकी कुछ numbers भी होते हैं।
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इस article में Java में हम Palindrome number check करने के लिए method की help से program बनाएंगे , जिसमे एक number pass करने पर हमें boolean value मिलेगी। अगर pass किया गया number , Palindrome है तो true
otherwise false
return होगा।
// import package.
import java.util.*;
class Palindrome {
// Function to check for Palindrome number.
public static boolean isPalindrome(int number)
{
int temp = number;
int newNumber = 0;
while (temp > 0) {
int digit = temp % 10;
newNumber = newNumber * 10 + digit;
temp = temp / 10;
}
if (newNumber == number)
return true;
else
return false;
}
public static void main(String[] args)
{
// get number from user number.
Scanner sc = new Scanner(System.in);
System.out.println("Enter a number: ");
int number = sc.nextInt();
// now call function.
boolean result = isPalindrome(number);
if (result)
System.out.println("Number is Palindrome");
else
System.out.println("Number is not Palindrome");
}
}
Output :
Enter a number: 1234 Number is not Palindrome Enter a number: 101 Number is Palindrome
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