What are the different types of identifiers?
Answer / Ritesh Kumar Jha
"In Objective-C, there are three main types of identifiers: variable names, method names, and constant names. Variable names can be declared as instance variables, class variables, or local variables. Method names must follow certain conventions like starting with a lowercase letter for instance methods, and ending with a colon (:) for accessors and mutators. Constant names should be declared using the keyword 'const' and cannot be changed after initialization."
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