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Programming Logic and Design: Variables and Modularity

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Programming Logic and Design: Variables and Modularity

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Questions and Answers

What is the purpose of a declaration statement in programming?

To initialize the variable with a starting value
To classify what values can be held by the item
To provide a data type and an identifier for a variable (correct)
To perform arithmetic operations

What is an identifier in programming?

An unknown value of a variable
A classification that describes what values can be held by the item
A program component's name (correct)
A statement that provides a data type and an identifier for a variable

What does a numeric constant (literal numeric constant) represent in programming?

An unknown value of a variable
A statement that provides a data type and an identifier for a variable
A classification that describes what values can be held by the item
A fixed numeric value used in the program (correct)

What is the purpose of initializing a variable in programming?

To assign a starting value to the variable (C) Signup and view all the answers

Why is it important to choose reasonable and descriptive names for variables in programming?

To enhance code readability and understandability (A) Signup and view all the answers

Which of the following accurately describes a data type in programming?

It defines the size of a variable in computer memory (D) Signup and view all the answers

What is the purpose of naming variables descriptively in programming?

To make the program more readable and understandable (A) Signup and view all the answers

What is the significance of the 'initialization' of a variable in programming?

It assigns a starting value to the variable (C) Signup and view all the answers

What does a 'literal constant' represent in programming?

A value that cannot be changed during program execution (A) Signup and view all the answers

Why do programming languages have rules for creating identifiers?

To prevent the use of reserved keywords as variable names (D) Signup and view all the answers

An identifier is a program component’s ______

name Signup and view all the answers

A ______ is a classification that describes what values can be held by the item

data type Signup and view all the answers

Most programming languages allow ______ and digits in variable names

letters Signup and view all the answers

A ______ is a statement that provides a data type and an identifier for a variable

declaration Signup and view all the answers

Figure 2-2 shows a flowchart and pseudocode of ______

n Signup and view all the answers