₦airaland Forum

Good day nairalanders. I started learning Python programming language on solo learns a few days ago. While learning I came across this and my question is:

1. Why will someone need to add \n to his program? For instance, print('come\\nhere') gives come\nhere. What's the need for the \n there? Of what importance is It?

\n represents a [i]carriage return [/i]also callled a new line.

Its to make the computer know thier is a new line between the two characters

manuel4real:
Good day nairalanders. I started learning Python programming language on solo learns a few days ago. While learning I came across this and my question is:

1. Why will someone need to add \n to his program? For instance, print('come\\nhere') gives come\nhere. What's the need for the \n there? Of what importance is It?

"\n" (backslash n) is basically a newline character. Meaning whenever the program encounters it in a string, the rest of the string is moved to the next line. So, if I run:

print("Hello\nworld"

The output will be:
Hello
world

On the other hand, there are cases where you'd like to display "\n" on the screen. Using

print("Hello\nworld"

will interpret the character as a newline and you don't want that. The only option is to use another backslash to "escape" it. That means doing

print("Hello\\nworld"

instead.

That's why you'll see double backlash in some cases.

Nairaland's parser automatically converts right parentheses to an emoji.

manuel4real:
Good day nairalanders. I started learning Python programming language on solo learns a few days ago. While learning I came across this and my question is:

1. Why will someone need to add \n to his program? For instance, print('come\\nhere') gives come\nhere. What's the need for the \n there? Of what importance is It?

We use \n for next line. If example, you want name, address, number in separate lines you use \n to achieve that.

public class NextLineDemo{
public static void main(String [] args){
System.out.println("Your Name\nAddress\nNumber";

incogni2o:
\n represents a [i]carriage return [/i]also callled a new line.

Its to make the computer know thier is a new line between the two characters

Basically it means python should end that line and when next python would print it would start on a new line. In It also generates a carriage return characteristics even though it typical don’t mean carriage return.

Carriage return is \r

Incase you wanna know more, google escape characters.

The following is a list of escape sequences.

\n Newline
\t Horizontal Tab
\v Vertical Tab
\b Backspace
\r Carriage Return
\f Form feed
\a Audible Alert (bell)
\\ Backslash
\? Question mark
\' Single quote
\" Double quote
\000 Oct - No one uses Octal unless they have an ICL background...
\xhh Hex number

LSarcastic:
"\n" (backslash n) is basically a carriage return character. Meaning whenever the program encounters it in a string, the rest of the string is moved to the next line. So, if I run:

print("Hello\nworld"

The output will be:
Hello
world

On the other hand, there are cases where you'd like to display "\n" on the screen. Using

print("Hello\nworld"

will interpret the character as a newline and you don't want that. The only option is to use another backslash to "escape" it. That means doing

print("Hello\\nworld"

instead.

That's why you'll see double backlash in some cases.

Nairaland's parser automatically converts right parentheses to an emoji.

it’s a new line character not necessarily carriage return although it kinda do the two.

stanliwise:
it’s a new line character not necessarily carriage return although it kinda do the two.

You're right. I'll edit the answer to portray it. Thanks