In mathematics and programming, narcissistic numbers—also referred to as Armstrong numbers—are an intriguing idea. Any number that is equal to the sum of its digits, each raised to the power of the total number of digits, is considered narcissistic. In this tutorial, we'll look at how to use functions to construct a Java program that outputs all of the narcissistic numbers inside a sp... https://docs.vultr.com/java/examples/display-armstrong-numbers-between-intervals-using-function