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  1. #1
    kadanakanz is offline Member
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    May 2013
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    Default Checking Multiples from arguments?

    I have just started learning Java and I recently got a homework question which I'm unsure of how to do.
    Firstly, I have to grab a number from the argument.
    Then I check if its a multiple of 5 (0 is counted as a multiple of 5).
    IF a multiple of 5, I type "it is a multiple of 5"
    IF not, I type "it is not a multiple of "5".

    Java Code:
    public class Exercise1 {
    	public static void main(String[] args) {
    		int numToCheck = Integer.parseInt(args[0]);
    		for (int multiple = 0; multiple = Math.pow(numToCheck, 5); multiple++) {
    			System.out.println(numToCheck + " is a multiple of 5");
    		System.out.println(numToCheck + " is not a multiple of 5");
    So far I have this. When I try to run it in Eclipse, I get the error "Type mismatch: cannot convert from double to boolean."

    Can anyone help me?
    Last edited by kadanakanz; 05-16-2013 at 08:05 AM.

  2. #2
    JosAH's Avatar
    JosAH is offline Moderator
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    Sep 2008
    Voorschoten, the Netherlands
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    Default Re: Checking Multiples from arguments?

    Have a look at the % operator (modulo operator); if a number n is a multiple of 5, then n%5 == 0.

    kind regards,

    Build a wall around Donald Trump; I'll pay for it.

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