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Chapter 5: Problem 57

True or False A variable may be defined in the initialization expression of the for loop.

Short Answer

Expert verified
#Answer# True. A variable can be defined in the initialization expression of the 'for' loop. This is typically used for defining and initializing loop control variables, such as the loop index. For example: ```java for (int i = 0; i < 10; i++) { // Code block to be executed } ```

Step by step solution

01

Understanding the 'for' loop

A 'for' loop is a programming construct that allows you to execute a block of code a specific number of times. It consists of an initialization expression, a condition, and an iteration expression that gets executed at each iteration. The general structure of a 'for' loop is as follows: ``` for (initialization; condition; iteration) { // Code block to be executed } ``` Step 2: Defining a variable in the initialization expression
02

Defining a variable in the initialization expression

The initialization expression of the 'for' loop is executed once at the beginning of the loop. It is generally used to define and/or initialize the loop control variables, especially the loop index. For example: ```java for (int i = 0; i < 10; i++) { // Code block to be executed } ``` In the example above, the variable 'i' is defined and initialized to 0 in the initialization expression of the 'for' loop. Step 3: Evaluating the statement
03

Evaluating the statement

Based on our understanding of the 'for' loop and the given example, we can conclude that a variable can indeed be defined in the initialization expression of the 'for' loop. Therefore, the given statement is **True**.

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Most popular questions from this chapter

The _____________ and __________________ loops will not iterate at all if their test expressions are false to start with.

\(\mathrm{A}(\mathrm{n})\) ______________ is a variable that is initialized to some starting value, usually zero, and then has numbers added to it in each iteration of a loop.

Write code that does the following: Opens an output file with the filename Numbers.txt, uses a loop to write the numbers 1 through 100 to the file, and then closes the file.

Write a while loop that lets the user enter a number. The number should be multiplied by \(10,\) and the result stored in the variable product. The loop should iterate as long as product contains a value less than 100 .

When the increment or decrement operator is placed after the operand (or to the operand's right), the operator is being used in __________mode.
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