AP Computer Science 2.4 Review of the Basics

and here the potential answers All right pausing thinking and

we're going to answer this question We need to know

what exactly an escape character or escape sequence is And

when it's used Well this is one of those things

that doesn't get used frequently but when you need it

you'll wonder how you would have managed without it Yeah

like knowing how to catch a fish with your shoe

laces but not quite as dramatic In java a backslash

followed by a certain character is called in escape sequence

Let's suppose you want to print the following string in

a program The sign at the door red no hats

please but i wasn't technically wearing a hat It was

a raccoon not wanting to cause trouble mr scratchy and

on a left the interesting program you've got there The

problem with throwing that string in a normal print statement

is the quotation marks will confuse the compiler It believes

the first quotation mark from no hats please is the

end of the print statement after that it's expecting to

see more code and when that doesn't happen the compiler

will return an error There are a couple ways to

solve this problem First one would be tio not where

raccoon is a hat because second and more useful way

would be to escape the quotation marks in the string

So the compiler doesn't treat him like a code really

by placing a backslash in front of the quotation marks

we want to compiler to ignore We escape them and

they'll get asked like right through the prince stay just

like that though notice that we use the back slash

on the apostrophe too that's to prevent it from being

recognized as a single There are some special escape sequences

to a backslash followed by an end will insert a

new line at that position Backslash t will insert tab

and there are a few others that are a little

more obscure like this stuff Our question is asking us

what will happen with the following print statement so let's

look at the back slashes in the string The first

one will ensure the apostrophe gets past and not confused

for code So time will come out just fine Quotation

marks around testing are also properly escape so those quotation

marks will be printed correctly Then there's the backslash end

which is we just learned prints a new line and 00:02:38.63 --> [endTime] that's answered