Starting Out With Visual C# (5th Edition)
Starting Out With Visual C# (5th Edition)
5th Edition
ISBN: 9780135183519
Author: Tony Gaddis
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 1MC

A __________ structure executes a set of statements only under certain circumstances.

  1. a. sequence
  2. b. circumstantial
  3. c. decision
  4. d. Boolean
Expert Solution & Answer
Check Mark
Program Description Answer

The structure which executes statements under certain conditions is called as a decision structure.

Hence, the correct answer is option “C”.

Explanation of Solution

Decision structure:

  • Decision structure executes a set of statements under certain conditions.
  • It is also known as selection structure.
  • The action is performed only when the condition exists and takes different action depending upon the state “True” or “False”.

Example for decision structure:

“if” statement:

 “if” statement is used to make a decision structure, which permits the program to hold more than one path of execution.

  • The indented statement is executed only when the condition is “true”.
  • If the given condition is “false”, it skips the indented statements.

Syntax for “if” statement:

if condition:

  indented_statement_block

Explanation for incorrect options:

Sequence:

Simplest form of control structure is the sequence structure. It is a group of statements that are executed in the order in which they appear.

Hence, the option “A” is wrong.

Circumstantial:

Circumstantial structure does not execute the statements under certain conditions.

Hence, the option “B” is wrong.

Boolean:

The Boolean expression evaluates the statement as either “True” or “False” with the help of “if” statement.

Hence, the option “D” is wrong.

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Chapter 4 Solutions

Starting Out With Visual C# (5th Edition)

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