An Action In A Single Alternative Decision Structure Is Performed Only When The Condition Is True.?

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An Action In A Single Alternative Decision Structure Is Performed Only When The Condition Is True.?

An action in a single alternative decision structure is performed only when the condition is true. statement is used to create a decision structure. symbol is used to represent a Boolean expression. … statement will execute one block of statements if its condition is true or another block if its condition is false.

What is a single alternative decision structure?

Notice: In PHP, a Boolean expression must be enclosed in parentheses. … Without the braces, PHP cannot tell whether a statement is part of the if statement or part of the statements that follow the if statement. Many programmers prefer to always use braces even if the if statement includes only one single statement.

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What type of statement can be used to make a single alternative decision?

Chapter 03 Key Terms Review
A B
if statement Used to make a single-alternative decision
block One or more statements contained within a pair of curly braces
nested if A statement in which one decision structure is contained within another
dual-alternative decisions Has two possible outcomes

Which structure tests a condition and then takes one path if the condition is true or another path if the condition is false?

A single alternative decision structure tests a condition and then takes one path if the condition is true or another path if the condition is false. A decision structure can be nested inside another decision structure.

Will execute one block of statements if its condition is true or another block if its condition is false?

An if-else statement will execute one block of statements if its condition is true, or another block if its condition is false. A dual alternative decision structure provides two possible paths of execution – one path is taken if a condition is true, and the other path is taken if the condition is false.

What is a single alternative decision structure quizlet?

What is a single alternative decision structure? A decision structure that provides a single alternative path of execution. If the. condition that is being tested is true, the program takes the alternative path. Only $47.88/year.

What type of alternative decision structure is a case structure?

Introduction to Programming Chapter 04 – Multiple Choice
Question Answer
A case structure is a ________ alternative decision structure. Single Dual Multiple Single or dual All of these Multiple
What type of operators are the following? Boolean Relational Logical Mathematical None of these Relational

What decision structure is written inside another decision structure?

Nested Decision Structures and the if-elif-else Statement

To test more than one condition, a decision structure can be nested inside another decision structure.

What is used to write a dual alternative decision structure?

This type of decision control structure includes a statement or block of statements on both paths. If the Boolean expression evaluates to true , the statement or block of statements 1 is executed; otherwise, the statement or block of statements 2 is executed.

What type of structure involves choosing between alternative courses of action based on some value within a program quizlet?

What type of structure involves choosing between alternative courses of action based on some value within a program? Flowchart creators use diamond shapes to indicate alternative courses of action.

What structure tests a condition and takes different paths whether the condition is true?

A single alternative decision structure tests a condition and then takes one path if the condition is true, or another path if the condition is false. A decision structure can be nested inside another decision structure.

When one statement is placed within another one what is it called a <UNK> If?

A nested if statement is an if statement placed inside another if statement. Nested if statements are often used when you must test a combination of conditions before deciding on the proper action.

In which decision structure all conditions are tested even if the Previoustest is true?

Straight-through Logic: In this logic scheme, decisions are processed sequentially even if result of the previous test is true. In this logic, all conditions are tested whether previous condition is true or false. No Else is used in straight-through logic.

Which expression executes its block of code only when the test is true?

Expressions that are tested by the if statement are called Boolean expressions. Decision structures are also known as selection structures. An action in a single alternative decision structure is performed only when the condition is true.

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When using the operator one or both Subexpressions must be true for the compound expression to be true?

When using the logical operator one or both of the Subexpressions must be true for the compound? One or both subexpressions must be true for the compound expression to be true. It is only necessary for one of the subexpressions to be true, and it does not matter which.

What is the structure that causes a statement or a set of statements to execute repeatedly?

A repetition structure causes a statement or set of statements to execute repeatedly. Repetition structures are used to perform the same task over and over. A condition-controlled loop uses a Boolean (true/false) condition to control the number of times that it repeats.

How does a dual alternative decision structure work quizlet?

A dual alternative decision structure has two possible paths of execution, one if the condition evaluates to true, and another if the condition evaluates to false. The dual alternative decision structure executes one statement (or set of statements) no matter what the Boolean value of the evaluation is.

What is meant by the term conditionally executed?

Explane what is meant by the term conditionally executed. A conditionally executed statement is performed only when a certain condition is true. 2. You need to test a condition and then execute one set of statements if the condition is true. If the condition is false, you need to execute a different set of statements.

What is decision structure in Python?

Decision structures evaluate multiple expressions which produce TRUE or FALSE as outcome. You need to determine which action to take and which statements to execute if outcome is TRUE or FALSE otherwise. … An if statement can be followed by an optional else statement, which executes when the boolean expression is FALSE.

What is decision structure?

A decision structure is a construct in a computer program that allows the program to make a decision and change its behavior based on that decision. The decision is made based on the outcome of a logical test. A logical test is a calculation whose outcome is either true or false.

What type of operator can be used to determine whether a specific relationship?

Introduction to Programming 04
Question Answer
What type of operator can be used to determine whether a specific relationship exists between two values? Relational
Which operator is used to determine that the operands are not exactly of the same value? !=

What statement is an alternative to the IF-ELSE IF construct it is a multiple alternative decision structure?

A switch statement is a neat alternative to a multi way if-else chain. The letter grade to gpoint conversion program can be rewritten using a switch statement and it is shown in the following.

Is a switch statement a multiple alternative decision structure?

A switch is a multiple alternative decision structure that allows you to test the value of a variable or an expression and then use that value to determine which statement or set of statements to execute. … In a switch statement, each case value must be unique.

Can a decision structure be nested inside another decision structure?

A decision structure can be nested inside another decision structure. A compound Boolean expression created with the and operator is true only when both subexpressions are true.

Which of the following is the correct If clause to determine whether choice is anything other than 10 group of answer choices?

Review of Python Chapter 2
Question Answer
2-13. Which of the following is the correct if clause to use to determine whether choice is other than 10? a. if choice != 10: b. if choice != 10 c. if choice <> 10: d. if choice <> 10 e. None of the above a. if choice != 10:
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What is a dual alternative selection?

Terms in this set (2)

dual alternative decision structure. has two possible paths of execution determined by whether a condition is true or false. If-Then-Else statement. used to write a dual alternative decision structure.

What is a nested decision structure?

Nested decision structures. The nesting of decision structures allows a program to sequentially determine the current state of a problem component under investigation. … Often a decision structure needs to be used to select to which category a data item belongs.

What are the two parts of an if statement?

They’re comprised of a minimum of two parts, ‘if’ and ‘then’. However, there are also options such as ‘else’ and ‘else if’ for more complex if statements. A good way to think of the if statement is as a true or false question. They ask the program if something is true, and tell it what to do next based on the answer.

What type of statement is typically used to make a single alternative decision?

Chapter 03 Key Terms Review
A B
if statement Used to make a single-alternative decision
block One or more statements contained within a pair of curly braces
nested if A statement in which one decision structure is contained within another
dual-alternative decisions Has two possible outcomes

What data type can be used to hold any single character including numbers and non printing characters?

The varchar data type can contain any character, including non-printing characters and the ASCII null character (‘\0’). If the strings being compared are unequal in length, the shorter string is padded with trailing blanks until it equals the length of the longer string.

When you use the && operator you must include a complete?

When you use the && and || operators, you must include a complete Boolean expression on each side. b. The AND operator is written as two ampersands ( && ), and the OR operator is written as two pipes ( || ).

What decision structure is written inside another decision structure?

Nested Decision Structures and the if-elif-else Statement

To test more than one condition, a decision structure can be nested inside another decision structure.

How many choices are possible when using a single IF ELSE statement?

In programming , selection is implemented using IF statements . Using IF and ELSE gives two possible choices (paths) that a program can follow.

Is a construct that enables a program to specify alternative paths of execution?

“if” statement is a construct that enables a program to specify alternative paths of execution. one-way if statement executes an action if and only if the condition is true. an if-else statement decides the execution path based on whether the condition is true or false.

When an if statement is placed within another if statement?

8. When an if statement is placed within the conditionally-executed code of another if statement, this is known as nesting.

3_2 The three basic structures—sequence, selection, and loop

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