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a for loop that needs explaing

1 reply on 1 page. Most recent reply: Nov 15, 2002 2:58 PM by twisty

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ben

Posts: 57
Nickname: loftty
Registered: Oct, 2002

a for loop that needs explaing Posted: Nov 15, 2002 8:00 AM
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hello i just wanted to know what actully is going on in this code where it says (i%10 == 0) i know it reads in every 10th word but how could someone please explain please
thanks ben


for(int i = 0;e.hasMoreElements();i++) {
o = e.nextElement();
if (i%10 == 0){
System.out.println(o.toString());


twisty

Posts: 22
Nickname: twisty
Registered: Nov, 2002

Re: a for loop that needs explaing Posted: Nov 15, 2002 2:58 PM
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The % symbol means modulus, which gives you the remainder after division. For example, 10 / 3 = 3 with a remainder of 1. Modulus does the same thing as division, except it returns the remainder. So, for that same example, 10 % 3 gives you 1.

Thus, in your for loop example, using modulus in this way will ensure that only every 10th word is picked up.

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