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Prefix and Postfix operator question

Submitted by VonQ on Wed, 04/01/2009 - 20:37.
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There doesn't seem to be any difference in the output when I change the prefix to the postfix operator for the following code:

public class inc

{

public static void main(String[]args)throws Exception

{

for(int val=1; val< 11; val++) //when I change it to ++val the output is the
                               //same

{

System.out.println(val);

}


}

}

Why use one or the other if there is no difference in output?

Thank you from Von, a struggling Java student