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Select the correct answerWhich of these can not be used for a variable name in Java?Optionskeywordidentifieridentifier & keywordnone of the mentioned

Question

Select the correct answer

What of these can not be used for a variable name in Java?
Options:

  • keyword
  • identifier
  • identifier & keyword
  • none of the mentioned
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Solution

Break Down the Problem

  1. Identify the Options: Understand what each option represents in the context of variable naming rules in Java.
  2. Review Java Variable Naming Rules: Look into the rules that govern naming variables in Java.

Relevant Concepts

  1. Keywords: Reserved words in Java that have special meaning (e.g., class, public, static).
  2. Identifiers: Names given to variables, methods, classes, etc., which must follow specific naming conventions.

Analysis and Detail

  1. Keywords: Cannot be used as variable names in Java, as they are reserved for specific programming constructs.
  2. Identifiers: Allowed to be used for variable names as they are user-defined and must adhere to certain rules (e.g., starting with a letter, no spaces, etc.).

Verification

  1. Identifiers & Keywords: The phrase "identifier & keyword" suggests a combination, but in terms of naming rules, they cannot overlap since keywords are strictly prohibitive as variable names.

Final Answer

The correct answer is keyword. A keyword cannot be used for a variable name in Java.

This problem has been solved

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