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Chapter 4: Problem 13

The if statement regards an expression with a nonzero value as _______

Short Answer

Expert verified
In an "if statement", an expression with a nonzero value is treated as TRUE.

Step by step solution

01

Understanding Conditional Statements in Programming

In programming, conditional statements are used to make decisions based on certain conditions. The "if statement" is one of the most common types of conditional statements. It checks if a particular condition is true or false and then executes the corresponding set of code.
02

How if Statements Work

An "if statement" consists of the keyword "if" followed by a condition (expression) in parentheses, and then a block of code enclosed in curly braces. When the program encounters an "if statement", it evaluates the condition. If the condition is true, the block of code within the curly braces is executed. If the condition is false, the block of code is skipped.
03

Understanding Condition Evaluation

In most programming languages, the "if statement" evaluates conditions as either true or false. An expression is considered true if it has a nonzero value, and false if it has a zero value. The terminology for this concept might differ slightly between programming languages, but the main idea remains the same.
04

Completing the Sentence

Based on our understanding of how "if statements" evaluate conditions, we can complete the sentence as follows: The if statement regards an expression with a nonzero value as TRUE (or equivalent in the specific programming language, such as non-false, non-null, etc.). Therefore, the answer to the exercise is that an expression with a nonzero value is treated as TRUE by the "if statement".

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Most popular questions from this chapter

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

If the sub-expression on the left of the ______ logical operator is true, the right sub-expression is not checked.

Can an if statement test expressions other than relational expressions? Explain.

Write nested if statements that perform the following tests: If amount1 is greater than 10 and amount 2 is less than \(100,\) display the greater of the two.

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