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Chapter 4: Problem 12

The if statement regards an expression with the value 0 as _____

Short Answer

Expert verified
Answer: In programming languages like C, C++, and JavaScript, an expression with the value 0 is evaluated as **false** within an if statement.

Step by step solution

01

Understanding the if statement

The if statement is a conditional statement in programming that is used to test a certain condition. If the condition evaluates as true, the code inside the if block is executed. If the condition evaluates as false, the code inside the if block is skipped.
02

Expressions in if statements

In programming languages, expressions are placed inside if statements to determine whether they should be executed or not. These expressions are usually evaluated as true or false (also called boolean values). In some languages like C, C++, and JavaScript, an expression with the numerical value 0 is considered as false, while non-zero values are considered true.
03

Evaluating an expression with the value 0

When an if statement has an expression with the value 0, it will be evaluated as false. This is because, as mentioned earlier, programming languages consider numerical values of 0 as false.
04

The answer

The if statement regards an expression with the value 0 as **false**.

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Most popular questions from this chapter

Assume the variables \(x=5, y=6,\) and \(z=8 .\) Indicate by circling the \(T\) or \(F\) whether each of the following conditions is true or false: $$x>=0 \quad|| x

Why do most programmers indent the conditionally executed statements in a decision structure?

Write an if/else statement that assigns 0 to \(\mathrm{x}\) when \(\mathrm{y}\) is equal to \(10 .\) Otherwise it should assign 1 to \(x\)

The __________ logical operator works best when testing a number to determine if it is within a range.

The trailing else in an if/else if statement has a similar purpose as the __________ section of a switch statement.
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