A good answer might be:

x: 100 y: 100

Sometimes Does Not Matter

When used with a variable standing alone, as in:

count++;
or in
++count;
it does not make any difference if you use the prefix or the postfix operator. For example, the following loop will print the values from 0 to 9, just as did the previous version (which used a postfix operator):
int counter=0;

while ( counter < 10 )
{
  System.out.println("counter is now " + counter );
  ++counter ;
}

QUESTION 7:

Is subtracting one from a variable a common operation?

Click Here after you have answered the question