Question: 1. Consider the Cool program below c l a s s Main i n h e r i t s IO { x : I
1. Consider the Cool program below
c l a s s Main i n h e r i t s IO {
x : I n t <− 5 ;
main ( ) : Ob jec t {
l e t newa : A <− new A, newb : A <− new B, newc : A <− new C i n
{
o u t s t r i n g ( newa .m( 1 ) ) ;
o u t s t r i n g ( newb .m( 1 ) ) ;
o u t s t r i n g ( newc .m( 1 ) ) ;
o u t s t r i n g (newc@A .m( 2 ) ) ;
}
} ;
} ;
c l a s s A {
v : I n t ;
m ( x : I n t ) : S t ri n g {
i f x < v then
” H ell o ”
e l s e
”Goodbye”
f i
} ;
setV ( newv : I n t ) {
v <− newv
} ;
} ;
c l a s s B i n h e r i t s A {
m ( x : I n t ) : S t ri n g {
i f x > v then
”Hola ”
e l s e
” Adios ”
f i
} ;
setV ( newv : I n t ) {
v <− newv + 1
} ;
} ;
1
c l a s s C i n h e r i t s A {
m ( x : I n t ) : S t ri n g {
i f x = v then
”Nihao”
e l s e
” Z a i j i a n ”
f i
} ;
} ;
What is the output of this program?
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