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
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
Problem 1PE
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
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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