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Update Armstrong.java #6130

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6 changes: 2 additions & 4 deletions src/main/java/com/thealgorithms/maths/Armstrong.java
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Original file line number Diff line number Diff line change
Expand Up @@ -21,16 +21,14 @@ public class Armstrong {
*/
public boolean isArmstrong(int number) {
long sum = 0;
String temp = Integer.toString(number); // Convert the given number to a string
int power = temp.length(); // Extract the length of the number (number of digits)
int totalDigits = (int) Math.log10(number) + 1;; // get the length of the number (number of digits)
long originalNumber = number;

while (originalNumber > 0) {
long digit = originalNumber % 10;
sum += (long) Math.pow(digit, power); // The digit raised to the power of the number of digits and added to the sum.
sum += (long) Math.pow(digit, totalDigits); // The digit raised to the power of the number of digits and added to the sum.
originalNumber /= 10;
}

return sum == number;
}
}
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