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Questions and Answers
Which of the following best describes the purpose of an identifier in programming?
Which of the following best describes the purpose of an identifier in programming?
- To specify the data type of a variable.
- To assign a unique name to a variable, function, or other code element. (correct)
- To define a reserved word with a specific meaning.
- To indicate a fixed numerical value within the code.
In the context of variable declaration, what does 'initializing a variable' mean?
In the context of variable declaration, what does 'initializing a variable' mean?
- Declaring the variable's name without assigning a value.
- Defining the scope within which the variable can be accessed.
- Assigning a data type to the variable.
- Assigning an initial value to a variable when it is declared. (correct)
Which naming convention uses lowercase words separated by hyphens?
Which naming convention uses lowercase words separated by hyphens?
- Mixed case with underscores
- Kebab case (correct)
- Pascal casing
- Camel case
Why can't a keyword (reserved word) be used as an identifier?
Why can't a keyword (reserved word) be used as an identifier?
Which of the following statements relates to an 'lvalue' in programming?
Which of the following statements relates to an 'lvalue' in programming?
What characterizes the 'mixed case with underscores' naming convention?
What characterizes the 'mixed case with underscores' naming convention?
What is a 'numeric constant' in programming?
What is a 'numeric constant' in programming?
What is the primary role of an 'operand' in programming?
What is the primary role of an 'operand' in programming?
Which of the following demonstrates 'Pascal casing'?
Which of the following demonstrates 'Pascal casing'?
Which of the following represents the correct way to initialize a variable age with the integer value 25?
Which of the following represents the correct way to initialize a variable age with the integer value 25?
Flashcards
Identifier
Identifier
A name given to a variable, function, or other item in code to identify it.
Initializing a variable
Initializing a variable
Assigning an initial value to a variable when it is declared.
Kebab case
Kebab case
A naming convention where words are all lowercase and separated by hyphens.
Keyword (reserved word)
Keyword (reserved word)
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Lvalue
Lvalue
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Mixed case with underscores
Mixed case with underscores
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Numeric constant
Numeric constant
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Numeric variable
Numeric variable
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Operand
Operand
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Pascal casing
Pascal casing
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Study Notes
- An identifier is a name assigned to a variable, function, or other element in code to facilitate its recognition.
- Initializing a variable involves assigning it a starting value upon declaration, demonstrated by
int x = 10. - Kebob case is a naming convention where all words are lowercase and separated by hyphens, such as in "my-variable-name".
- A keyword (or reserved word) is a term in a programming language with a predefined meaning that can't be used as an identifier (examples:
if,while, andclass) - Lvalue refers to an expression that points to a memory address and can be found on the left of an assignment, as seen in
x in x = 5. - Mixed case with underscores is a naming convention combining uppercase and lowercase letters, separated by underscores (e.g.,
My_Variable_Name). - A numeric constant is a fixed numerical value directly written in the code (e.g.,
42). - A numeric variable is a variable that stores a number value.
- An operand is a value or variable that an operator acts upon, exemplified by
3and5in3 + 5. - Pascal casing is a naming convention where each word in a name begins with an uppercase letter, as in
MyVariableName.
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