Choose the appropriate methodName after analyzing the code below: public double methodName () int total - 0; for (int grade : grades) total +- grade; return (double) total / grades.length; a. getMaximum O b. getTotal Oc. getMinimum O d. getAverage

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
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**Coding Exercise: Understanding Method Naming**

**Code Analysis**

The code snippet below is a method written in Java that performs calculations on an array of grades. Your task is to determine the most appropriate name for this method based on its functionality.

```java
public double methodName() {
    int total = 0;
    for(int grade : grades) {
        total += grade;
    }
    return (double) total / grades.length;
}
```

**Explanation**

- The method initializes a variable `total` to 0.
- It then iterates through an array `grades`, adding each `grade` to `total`.
- Finally, it returns the total sum of the grades divided by the number of grades, casting the result to a `double` to ensure a precise division.

**Question**

Based on the functionality described, select the most appropriate name for the method from the options provided:

- a. getMaximum
- b. getTotal
- c. getMinimum
- d. getAverage

**Analysis of Options**

- **a. getMaximum**: This name would imply that the method finds the maximum grade, which it does not.
- **b. getTotal**: This name suggests the method returns the total sum of all grades, which is not entirely accurate since it calculates an average.
- **c. getMinimum**: This name would mean the method finds the minimum grade, which is incorrect.
- **d. getAverage**: This is the most suitable name because the method calculates and returns the average grade.

**Correct Answer**

d. getAverage

Choosing the appropriate method name is crucial for code readability and maintenance. Understanding what a method does before naming it helps in aligning the code with its purpose, making it easier for others (and yourself) to work with in the future.
Transcribed Image Text:**Coding Exercise: Understanding Method Naming** **Code Analysis** The code snippet below is a method written in Java that performs calculations on an array of grades. Your task is to determine the most appropriate name for this method based on its functionality. ```java public double methodName() { int total = 0; for(int grade : grades) { total += grade; } return (double) total / grades.length; } ``` **Explanation** - The method initializes a variable `total` to 0. - It then iterates through an array `grades`, adding each `grade` to `total`. - Finally, it returns the total sum of the grades divided by the number of grades, casting the result to a `double` to ensure a precise division. **Question** Based on the functionality described, select the most appropriate name for the method from the options provided: - a. getMaximum - b. getTotal - c. getMinimum - d. getAverage **Analysis of Options** - **a. getMaximum**: This name would imply that the method finds the maximum grade, which it does not. - **b. getTotal**: This name suggests the method returns the total sum of all grades, which is not entirely accurate since it calculates an average. - **c. getMinimum**: This name would mean the method finds the minimum grade, which is incorrect. - **d. getAverage**: This is the most suitable name because the method calculates and returns the average grade. **Correct Answer** d. getAverage Choosing the appropriate method name is crucial for code readability and maintenance. Understanding what a method does before naming it helps in aligning the code with its purpose, making it easier for others (and yourself) to work with in the future.
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