Overwriting File Info

[Selfi]

Hi everyone, I'm trying to figure out how to remove lines of information from files.

For example, the file contents is

a
b
c
d
e
f
g

and i want to remove the line containing the letter d
how would one go about this without creating a blank line in the file?
thanks a bunch in advance.

[wtd]

Can you read the lines from the file into an array of Strings?

Can you loop over that array?

Can you print each String in that array to a file?