string means just the sentence including quotation marks. For example "hello world" double quote means using ". single quote means '. Can someone tell me if the concept is right??

Answer 1

Yep. String is for representing text, and you put the text between a pair of quotes or double-quotes.

Answer 2

Concept's fine for these string literal types. What's nice about them is they allow naturally embedding the other type:

"This string's got an apostrophe inside."
'This string has "double quotes" inside'

Answer 3

a string can be either double or single qoute marks, but can not be double or single together. "string" or 'string' are both correct but "string' will not work.

Answer 4

If we use single quotes... We have to give prefix as print. for eg: print 'hello word'...... Also if we want to use double quotes.. Its simply "hello word"