Plz help me in this example

import java.util.*;

public class calcarms

{

public static void main(String [] args)

{

 Scanner input = new Scanner(System.in);

 //Declare Variable

 int num;

 //Initialize num to 0

 num = 0;

 //Print heading

 System.out.println("Armstrong Numbers\t\tDifference between Successive Armstrong Numbers");

 //Call Armstrong method

 boolean result = Armstrong(num);  

}

public static boolean Armstrong(int num)

{

 int nums;

 //Initialize old_Arms and new_Arms to 0

 int old_Arms =0; int new_Arms = 0;

 for(int i = 0;i<=500;i++) //Iterate from 0 to 500

 {

 nums = i;

 int temp,calc = 0;

 temp = nums;  

 //Check individual digit of each number

 while(nums > 0)

 {

 int a=nums%10;  

 nums/=10;

 calc+=(a*a*a);//Find cube of number

 }

 if(temp == calc) //Check if number is armstrong

 {

 new_Arms = calc;

 old_Arms = new_Arms - old_Arms;

 System.out.println(calc+"\t\t\t"+old_Arms);//Print

 old_Arms = calc;      

 }

 }

 return true;  

};

}

Explanation:

Comments are used to explain difficult lines

the benefits of raising bc’s minimum wage to $15 through a

series of pre-announced staged increases far outweigh the likely

costs. claims that such an increase will lead to massive job losses

in low-wage sectors of the economy are not credible.

• an increase to $15 would result in some job losses. however,

the likely impact is less than a 1 per cent reduction in the overall

provincial employment rate, and a 7.6 per cent reduction in the

employment rate for those currently making between $10.25

and $15 per hour.

• the large job loss impacts predicted by some opponents of

minimum wages misrepresent the existing economic research. in

reading and using that research, it is important to recognize that

estimates showing job loss effects of minimum wage increases

apply only to teenagers. estimated effects for young adult and

adult workers range from insignificant to non-existent.

• focusing on teenage workers plays up an inaccurate stereotype

about who earns very low wages in bc and leads to exaggerated

claims about job losses. only 26 per cent of those currently making

between $10.25 and $12 are teenagers, and only 5 per cent

of those making between $12 and $15 are teenagers.