https://github.com/zipcodecore/maven.quiz9-3

https://github.com/zipcodecore/maven.quiz9-3

Last synced: 4 months ago
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• Host: GitHub
• URL: https://github.com/zipcodecore/maven.quiz9-3
• Owner: ZipCodeCore
• Created: 2022-04-20T16:01:08.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2022-04-21T22:13:31.000Z (over 3 years ago)
• Last Synced: 2025-01-08T12:41:24.934Z (12 months ago)
• Language: Java
• Size: 8.79 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# Quiz 9-3

## Overview

* This quiz has 2 sections.

	1. fundamentals

		* `Calculator`

		* `StringUtils`

	2. arrays

		* `ArrayUtils`





## Section 1 - Fundamentals

### Calculator

* **Description**

	* The purpose of this class is to create a simple calculator.

* **Methods to Complete**

	* `Double add(Double val1, Double val2)`

		* return the _sum_ of `val1` and `val2`

	* `Double subtract(Double val1, Double val2)`

		* return the _difference_ of `val1` and `val2`

	* `Double divide(Double val1, Double val2)`

		* return the _quotient_ of `val1` and `val2`

	* `Double squareRoute(Double value)`

		* return the _square root_ of `value`

	* `Double square(Double value)`

		* return the _square_ of `value`

	* `Double[] squareRoutes(Double[] values)`

		* return an array of `Double`, containing the square root of each of the elements in `values`.

	* `Double[] squares(Double[] values)`

		* return an array of `Double`, containing the square of each of the elements in `values`.

### StringUtils

* **Description**

	* The purpose of this class is to create utility `String` methods

* **Methods to Complete**

	* `String getMiddleCharacter(String string)`

		* return character at index `string.length()/2` as `String`.

	* `String capitalizeMiddleCharacter(String string)`

		* return near-identical `String` with character at index `string.length()/2` capitalized.

	* `String lowercaseMiddleCharacter(String string)`

		* return near-identical `String` with character at index `string.length()/2` lowercased.

	* `String invertCasing(String string)`

		* return near-identical `String` with each character's casing inverted: Capital letters become lowercase, lowercase letters become lowercase.

	* `Boolean hasDuplicateConsecutiveCharacters(String string)`

		* return `true` if `string` contains two identical characters in adjacent indices.

	* `Boolean removeDuplicateConsecutiveCharacters(String string)`

		* return near-identical `String` with each occurrence of duplicate-adjacent characters removed.

	* `Boolean isIsogram(String string)`

		* return `true` if each `Character` in `string` occurs exactly 1 time.





## Section 2 - Arrays

### ArrayUtils

* **Description**

	* The purpose of this class is to create a utility for manipulating arrays.

* **Methods to Complete**

	* `String getMiddleElement(String[] values)`

		* return the element at index `values.length/2`

	* `String[] removeMiddleElement(String[] values)`

		* return near-identical array with element at index `values.length/2` removed.

	* `String getLastElement(String[] values)`

		* return element at index `values.length-1`

	* `String[] removeLastElement(String[] values)`

		* return near-identical array with element at index `values.length-1` removed.