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How to find all the armstrong numbers in the range of 0 and 999 in Java

1 Answer

0 votes
package javaapplication1;

// An Armstrong number of three digits is an integer that the sum 
// of the cubes of its digits is equal to the number itself

// 371 is an Armstrong number: 3**3 + 7**3 + 1**3 = 371

public class JavaApplication1 {
 
    public static void main(String[] args) {
        
        int reminder, sum, tmp;

        for (int n = 0; n <= 999; n++)
        {
            tmp = n;
            sum = 0;

            while (tmp != 0)
            {
                reminder = tmp % 10;
                tmp = tmp / 10;
                sum = sum + (reminder * reminder * reminder);
            }

            if (sum == n)
                System.out.format("%d\n", n);
        }
    }
}
   
/*
run:
  
0
1
153
370
371
407
   
*/

 




answered May 8, 2017 by avibootz
edited May 8, 2017 by avibootz
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