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In programming languages, one set of names can be kept different from other sets using
1. Identifiers
2. Namespaces
3. Packages
4. Directories

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Correct Answer - Option 1 : Identifiers

The correct answer is Identifiers.

  • C identifiers represent the name in the C program, for example, variables, functions, arrays, structures, unions, labels, etc.
  • An identifier can be composed of letters such as uppercase, lowercase letters, underscore, digits, but the starting letter should be either an alphabet or an underscore.

  • In the C programming language, the character set refers to a set of all the valid characters that we can use in the source program for forming words, expressions, and numbers.
  • The source character set contains all the characters that we want to use for the source program text.
  • The character sets help in defining the valid characters that we can use in the source program or can interpret during the running of the program.

Name Details
Namespaces
  • A namespace is a declarative region that provides a scope to the identifiers (the names of types, functions, variables, etc) inside it.
  • Namespaces are used to organize code into logical groups and to prevent name collisions that can occur especially when your codebase includes multiple libraries.
Packages
  • The C language does not have the concept of a package. The largest unit of organization for a C program is the translation unit, consisting of a source file along with anything it #include s, directly or indirectly.
  • The author of the code presumably had something in mind as the definition of a package.
Directories
  • A directory is a location for storing files on your computer.
  • Directories are found in a hierarchical file system, such as Linux, MS-DOS, OS/2, and Unix.
  • Directory Also known as a folder, a directory is a collection of files typically created for organizational purposes.

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