Why need to define @font-face twice?

Question

@font-face {
font-family: Delicious;
src: url('Delicious-Roman.otf');
} /*why this is needed here*/
@font-face {
font-family: Delicious;
font-weight: bold;
src: url('Delicious-Bold.otf');
}
h1{
font-family: Delicious, sans-serif;
}

Answer 1

actually its not used two times..both are different as you can see first is
1 delicious-roman.otf
2 delicious-bold.otf
(they both are different)

but this code isnt ran right?
i also just checked it out and its showing error