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In this core java programming tutorial we will write a program to Find number is armstrong or not in java.
What is armstrong number?
A armstrong number is a number such that the sum of the cubes of its digits is equal to the number itself.
13 + 53 + 33 = 1 + 125 + 27 = 153.
Armstrong number 1: 0
Armstrong number 2: 1
Armstrong number 3: 153
Armstrong number 4: 370
Armstrong number 5: 371
Armstrong number 6: 407
Full Program/SourceCode / Example >
/** Copyright (c), AnkitMittal www.JavaMadeSoEasy.com */
public class ArmstrongNumberExample {
public static void main(String... args) {
int number = 153;
int sum = 0;
int temp = number; //temp will hold reference to number.
while (temp > 0) {
int rem = temp % 10;
sum += (rem * rem * rem);
temp = temp / 10;
}
if (number == sum)
System.out.println(number + " is armstrong number.");
else
System.out.println(number + " is not armstrong number.");
}
}
/*OUTPUT
153 is armstrong number.
*/
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So, in this core java programming tutorial we wrote a program to Find number is armstrong or not in java.
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Labels:
Core Java
Level1 programs (beginners)