Thread: Some Help for Finals

hello im new here and have scouted the internet and i like this page alot.. so i signed up and will probably read more so than post but i did have some questions, really basic stuff for a final tommrow any help would be great thanks soo much!!
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ok,
in order of operations what comes first || or &&?
also in order of operations what is first == or !=?


finnally some loop stuff, i understand the code pretty decently i just dont know how many times the loop will be executed
eg:

int a = 10;
int x = 4; ...oops

do
{
cout << a << " --- " << x;
cout << endl << "wow";
}

while (a<=x)

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... im guessing as long as "a" is less that or equal to "x"
but what about like
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int a = 20;
int x = 4;
while (x<=a)
{
cout << a << "---" << x;
cout << endl << 'wow";
a--;
x++;
}

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i get lost here with the -- ++ stuff.. retarted i know..
again any help is much appritiated and if no help well i just will go and stare at my book for along time sniff