Rewrite this while statement as a for statement. int count = 0; while(counter < width) { rect(x, y, 30, 50); counter ++; }

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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**Objective: Convert a While Loop to a For Loop**

In this task, we are asked to rewrite the given `while` statement as a `for` statement. Here's the original code:

```c
int count = 0;
while(counter < width)
{
    rect(x, y, 30, 50);
    counter++;
}
```

### Steps to Convert

1. **Initialization**: The variable `count` is initialized to 0. However, note that within the `while` loop, the variable `counter` is the one being used. Let's assume `counter` should be initialized, possibly in a different section of your code.

2. **Condition**: The loop continues as long as `counter` is less than `width`.

3. **Increment**: Inside the loop, `counter` is incremented by 1 in each iteration.

4. **Action**: A rectangle is drawn using the `rect` function with parameters `(x, y, 30, 50)`.

### Converted Code

Below is the equivalent `for` loop statement:

```c
for (int counter = 0; counter < width; counter++)
{
    rect(x, y, 30, 50);
}
```

### Explanation

- **Initialization**: The loop initialization `int counter = 0` is done in the `for` loop declaration.
- **Condition**: `counter < width` serves as the loop continuation condition.
- **Increment**: The increment operation `counter++` is placed as the third expression in the `for` loop header, ensuring it runs after each iteration.
- **Action**: The `rect` function is called within the loop body as before.

This refactoring provides a more concise and clear structure, often preferred in professional programming for loops with simple counting logic.
Transcribed Image Text:**Objective: Convert a While Loop to a For Loop** In this task, we are asked to rewrite the given `while` statement as a `for` statement. Here's the original code: ```c int count = 0; while(counter < width) { rect(x, y, 30, 50); counter++; } ``` ### Steps to Convert 1. **Initialization**: The variable `count` is initialized to 0. However, note that within the `while` loop, the variable `counter` is the one being used. Let's assume `counter` should be initialized, possibly in a different section of your code. 2. **Condition**: The loop continues as long as `counter` is less than `width`. 3. **Increment**: Inside the loop, `counter` is incremented by 1 in each iteration. 4. **Action**: A rectangle is drawn using the `rect` function with parameters `(x, y, 30, 50)`. ### Converted Code Below is the equivalent `for` loop statement: ```c for (int counter = 0; counter < width; counter++) { rect(x, y, 30, 50); } ``` ### Explanation - **Initialization**: The loop initialization `int counter = 0` is done in the `for` loop declaration. - **Condition**: `counter < width` serves as the loop continuation condition. - **Increment**: The increment operation `counter++` is placed as the third expression in the `for` loop header, ensuring it runs after each iteration. - **Action**: The `rect` function is called within the loop body as before. This refactoring provides a more concise and clear structure, often preferred in professional programming for loops with simple counting logic.
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