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PalindromeNumber #1014

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Merged
merged 1 commit into from
Oct 11, 2019
Merged

PalindromeNumber #1014

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30 changes: 30 additions & 0 deletions Maths/PalindromeNumber.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,30 @@
package Maths;

public class PalindromeNumber {
public static void main(String[] args) {

assert isPalindrome(12321);
assert !isPalindrome(1234);
assert isPalindrome(1);
}

/**
* Check if {@code n} is palindrome number or not
*
* @param number the number
* @return {@code true} if {@code n} is palindrome number, otherwise {@code false}
*/
public static boolean isPalindrome(int number) {
if (number < 0) {
throw new IllegalArgumentException(number + "");
}
int numberCopy = number;
int reverseNumber = 0;
while (numberCopy != 0) {
int remainder = numberCopy % 10;
reverseNumber = reverseNumber * 10 + remainder;
numberCopy /= 10;
}
return number == reverseNumber;
}
}