Palindromic Number in Java (original) (raw)
Published on 11 October 2020 (Updated: 11 October 2022)
Welcome to the Palindromic Number in Java page! Here, you'll find the source code for this program as well as a description of how the program works.
Current Solution
public class PalindromicNumber {
public static void main(String[] args) {
Long num;
try {
num = Long.parseLong(args[0]);
} catch (Exception ignored) {
num = null;
}
if (num == null || num < 0) {
System.out.println("Usage: please input a non-negative integer");
} else {
System.out.println(isPalindromic(num));
}
}
public static boolean isPalindromic(Long num) {
char[] numChars = String.valueOf(num).toCharArray();
for (int i = 0; i < numChars.length / 2; i++) {
if (numChars[i] != numChars[numChars.length - 1 - i])
return false;
}
return true;
}
}
Palindromic Number in Java was written by:
- Jeremy Grifski
- smallblack9
If you see anything you'd like to change or update, please consider contributing.
How to Implement the Solution
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How to Run the Solution
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