can someone please tell me what the exclamation mark does?

Answer 1

wait does the != mean not equal

Answer 2

an exclaimaion mark simply puts a NOT in front of the equal to sign.
and it means "not equal to".

Answer 3

gives opposite of something

Answer 4

it is also one of the operator like + - *
! - explains not
if compare any situation this came into the picture
Ex
if (n!=5)
{
print " hi"
}
else
{
print 0
}

For " n "values except 5
all values it will execute if statement

Answer 5

it's nothing but != means not equal .it is moreover used to check the conditions

Answer 6

Yes, you are right.
Makes "not equal to"

Answer 7

makes it a not equal to.

Answer 8

an exclamation mark followed but equal to sign means not equal to