[amp_mcq option1=”name, names” option2=”smith, johnsmith” option3=”identifier 1, identifier_2″ option4=”charl, char_l E. None of the above” correct=”option1″]<\/p>\n
The correct answer is: None of the above.<\/p>\n
In programming, an identifier is a name that is used to refer to a variable, function, class, or other entity. Identifiers are case-sensitive, so “name” and “Names” are different identifiers. Identifiers must also start with a letter or underscore, and can only contain letters, numbers, and underscores.<\/p>\n
In the options given, only “identifier 1” and “identifier_2” are both identifiers that start with a letter and contain only letters, numbers, and underscores. However, they are not considered to be identical because they are case-sensitive.<\/p>\n
The other options are not identifiers because they do not start with a letter or underscore, or they contain characters that are not letters, numbers, or underscores.<\/p>\n","protected":false},"excerpt":{"rendered":"
[amp_mcq option1=”name, names” option2=”smith, johnsmith” option3=”identifier 1, identifier_2″ option4=”charl, char_l E. None of the above” correct=”option1″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[683],"tags":[],"class_list":["post-48031","post","type-post","status-publish","format-standard","hentry","category-object-oriented-programming-using-c-plus-plus","no-featured-image-padding"],"yoast_head":"\n