Aggiunti alcuni esercizi di java.

hamming/.exercism/config.json

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+{
+  "authors": [
+    "wdjunaidi"
+  ],
+  "contributors": [
+    "c-thornton",
+    "ChristianWilkie",
+    "FridaTveit",
+    "javaeeeee",
+    "jmrunkle",
+    "jonnynabors",
+    "jtigger",
+    "kytrinyx",
+    "lemoncurry",
+    "matthewmorgan",
+    "michael-berger-FR",
+    "michaelspets",
+    "mirkoperillo",
+    "msomji",
+    "muzimuzhi",
+    "odzeno",
+    "sjwarner-bp",
+    "SleeplessByte",
+    "Smarticles101",
+    "sshine",
+    "stkent",
+    "t0dd",
+    "Valkryst",
+    "vasouv",
+    "Zaldrick"
+  ],
+  "files": {
+    "solution": [
+      "src/main/java/Hamming.java"
+    ],
+    "test": [
+      "src/test/java/HammingTest.java"
+    ],
+    "example": [
+      ".meta/src/reference/java/Hamming.java"
+    ],
+    "invalidator": [
+      "build.gradle"
+    ]
+  },
+  "blurb": "Calculate the Hamming difference between two DNA strands.",
+  "source": "The Calculating Point Mutations problem at Rosalind",
+  "source_url": "http://rosalind.info/problems/hamm/"
+}

hamming/.exercism/metadata.json

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+{"track":"java","exercise":"hamming","id":"3935f75ded4a4915b3a9d6ba595ad807","url":"https://exercism.org/tracks/java/exercises/hamming","handle":"GicoProgram","is_requester":true,"auto_approve":false}

hamming/.gradle/buildOutputCleanup/cache.properties

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+#Tue Mar 07 19:09:01 CET 2023
+gradle.version=7.5.1

hamming/.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml

hamming/.idea/compiler.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="11" />
+  </component>
+</project>

hamming/.idea/gradle.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="distributionType" value="DEFAULT_WRAPPED" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

hamming/.idea/jarRepositories.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="MavenRepo" />
+      <option name="name" value="MavenRepo" />
+      <option name="url" value="https://repo.maven.apache.org/maven2/" />
+    </remote-repository>
+  </component>
+</project>

hamming/.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" project-jdk-name="11" project-jdk-type="JavaSDK" />
+</project>

hamming/HELP.md

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+# Help
+
+## Running the tests
+
+Choose your operating system:
+
+* [Windows](#windows)
+* [macOS](#macos)
+* [Linux](#linux)
+
+----
+
+1. Open a Command Prompt.
+2. Get the first exercise:
+
+     ```batchfile
+     C:\Users\JohnDoe>exercism download --exercise hello-world --track java
+
+     Not Submitted:     1 problem
+     java (Hello World) C:\Users\JohnDoe\exercism\java\hello-world
+
+     New:               1 problem
+     java (Hello World) C:\Users\JohnDoe\exercism\java\hello-world
+
+     unchanged: 0, updated: 0, new: 1
+   ```
+
+3. Change directory into the exercism:
+
+     ```batchfile
+     C:\Users\JohnDoe>cd C:\Users\JohnDoe\exercism\java\hello-world
+     ```
+   
+4. Run the tests:
+
+     ```batchfile
+     C:\Users\JohnDoe>gradle test
+     ```
+   *(Don't worry about the tests failing, at first, this is how you begin each exercise.)*
+
+5. Solve the exercise.  Find and work through the `instructions.append.md` guide ([view on GitHub](https://github.com/exercism/java/blob/main/exercises/practice/hello-world/.docs/instructions.append.md#tutorial)).
+
+
+Good luck!  Have fun!
+
+----
+
+1. In the terminal window, get the first exercise:
+
+     ```
+     $ exercism download --exercise hello-world --track java
+
+     New:                 1 problem
+     Java (Etl) /Users/johndoe/exercism/java/hello-world
+
+     unchanged: 0, updated: 0, new: 1
+    ```
+
+2. Change directory into the exercise:
+
+     ```
+     $ cd /Users/johndoe/exercism/java/hello-world
+     ```
+
+3. Run the tests:
+
+    ```
+    $ gradle test
+    ```
+   *(Don't worry about the tests failing, at first, this is how you begin each exercise.)*
+
+4. Solve the exercise.  Find and work through the `instructions.append.md` guide ([view on GitHub](https://github.com/exercism/java/blob/main/exercises/practice/hello-world/.docs/instructions.append.md#tutorial)).
+
+Good luck!  Have fun!
+
+----
+
+1. In the terminal window, get the first exercise:
+
+     ```
+     $ exercism download --exercise hello-world --track java
+
+     New:                 1 problem
+     Java (Etl) /home/johndoe/exercism/java/hello-world
+
+     unchanged: 0, updated: 0, new: 1
+
+    ```
+
+2. Change directory into the exercise:
+
+     ```
+     $ cd /home/johndoe/exercism/java/hello-world
+     ```
+
+3. Run the tests:
+
+    ```
+    $ gradle test
+    ```
+   *(Don't worry about the tests failing, at first, this is how you begin each exercise.)*
+
+4. Solve the exercise.  Find and work through the `instructions.append.md` guide ([view on GitHub](https://github.com/exercism/java/blob/main/exercises/practice/hello-world/.docs/instructions.append.md#tutorial)).
+
+Good luck!  Have fun!
+
+## Submitting your solution
+
+You can submit your solution using the `exercism submit src/main/java/Hamming.java` command.
+This command will upload your solution to the Exercism website and print the solution page's URL.
+
+It's possible to submit an incomplete solution which allows you to:
+
+- See how others have completed the exercise
+- Request help from a mentor
+
+## Need to get help?
+
+If you'd like help solving the exercise, check the following pages:
+
+- The [Java track's documentation](https://exercism.org/docs/tracks/java)
+- [Exercism's programming category on the forum](https://forum.exercism.org/c/programming/5)
+- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs)
+
+Should those resources not suffice, you could submit your (incomplete) solution to request mentoring.
+
+If you need some help you can visit these resources:
+
+* [Stack Overflow](https://stackoverflow.com/questions/tagged/java),
+* [The Java subreddit](https://www.reddit.com/r/java),
+* [Official Java documentation](https://docs.oracle.com/en/java/javase/11/docs/api/index.html).

hamming/README.md

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+# Hamming
+
+Welcome to Hamming on Exercism's Java Track.
+If you need help running the tests or submitting your code, check out `HELP.md`.
+
+## Instructions
+
+Calculate the Hamming Distance between two DNA strands.
+
+Your body is made up of cells that contain DNA. Those cells regularly wear out and need replacing, which they achieve by dividing into daughter cells. In fact, the average human body experiences about 10 quadrillion cell divisions in a lifetime!
+
+When cells divide, their DNA replicates too. Sometimes during this process mistakes happen and single pieces of DNA get encoded with the incorrect information. If we compare two strands of DNA and count the differences between them we can see how many mistakes occurred. This is known as the "Hamming Distance".
+
+We read DNA using the letters C,A,G and T. Two strands might look like this:
+
+    GAGCCTACTAACGGGAT
+    CATCGTAATGACGGCCT
+    ^ ^ ^  ^ ^    ^^
+
+They have 7 differences, and therefore the Hamming Distance is 7.
+
+The Hamming Distance is useful for lots of things in science, not just biology, so it's a nice phrase to be familiar with :)
+
+The Hamming distance is only defined for sequences of equal length, so
+an attempt to calculate it between sequences of different lengths should
+not work. The general handling of this situation (e.g., raising an
+exception vs returning a special value) may differ between languages.
+
+This is the first exercise with tests that require you to throw an
+[`Exception`](https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html). `Exception`s are typically thrown to
+indicate that a program has encountered an unexpected input or state.
+
+We use JUnit's [`ExpectedException`](http://junit.org/junit4/javadoc/4.12/org/junit/rules/ExpectedException.html)
+[rule](https://github.com/junit-team/junit4/wiki/rules) throughout the track to verify that the exceptions you throw
+are:
+
+1. instances of a specified Java type;
+2. (optionally) initialized with a specified message.
+
+## Source
+
+### Created by
+
+- @wdjunaidi
+
+### Contributed to by
+
+- @c-thornton
+- @ChristianWilkie
+- @FridaTveit
+- @javaeeeee
+- @jmrunkle
+- @jonnynabors
+- @jtigger
+- @kytrinyx
+- @lemoncurry
+- @matthewmorgan
+- @michael-berger-FR
+- @michaelspets
+- @mirkoperillo
+- @msomji
+- @muzimuzhi
+- @odzeno
+- @sjwarner-bp
+- @SleeplessByte
+- @Smarticles101
+- @sshine
+- @stkent
+- @t0dd
+- @Valkryst
+- @vasouv
+- @Zaldrick
+
+### Based on
+
+The Calculating Point Mutations problem at Rosalind - http://rosalind.info/problems/hamm/

hamming/build.gradle

@@ -0,0 +1,24 @@
+apply plugin: "java"
+apply plugin: "eclipse"
+apply plugin: "idea"
+
+// set default encoding to UTF-8
+compileJava.options.encoding = "UTF-8"
+compileTestJava.options.encoding = "UTF-8"
+
+repositories {
+  mavenCentral()
+}
+
+dependencies {
+  testImplementation "junit:junit:4.13"
+  testImplementation "org.assertj:assertj-core:3.15.0"
+}
+
+test {
+  testLogging {
+    exceptionFormat = 'full'
+    showStandardStreams = true
+    events = ["passed", "failed", "skipped"]
+  }
+}

hamming/build/reports/tests/test/classes/HammingTest.html

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+<!DOCTYPE html>
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
+<meta http-equiv="x-ua-compatible" content="IE=edge"/>
+<title>Test results - Class HammingTest</title>
+<link href="../css/base-style.css" rel="stylesheet" type="text/css"/>
+<link href="../css/style.css" rel="stylesheet" type="text/css"/>
+<script src="../js/report.js" type="text/javascript"></script>
+</head>
+<body>
+<div id="content">
+<h1>Class HammingTest</h1>
+<div class="breadcrumbs">
+<a href="../index.html">all</a> &gt; 
+<a href="../packages/default-package.html">default-package</a> &gt; HammingTest</div>
+<div id="summary">
+<table>
+<tr>
+<td>
+<div class="summaryGroup">
+<table>
+<tr>
+<td>
+<div class="infoBox" id="tests">
+<div class="counter">9</div>
+<p>tests</p>
+</div>
+</td>
+<td>
+<div class="infoBox" id="failures">
+<div class="counter">0</div>
+<p>failures</p>
+</div>
+</td>
+<td>
+<div class="infoBox" id="ignored">
+<div class="counter">0</div>
+<p>ignored</p>
+</div>
+</td>
+<td>
+<div class="infoBox" id="duration">
+<div class="counter">0.028s</div>
+<p>duration</p>
+</div>
+</td>
+</tr>
+</table>
+</div>
+</td>
+<td>
+<div class="infoBox success" id="successRate">
+<div class="percent">100%</div>
+<p>successful</p>
+</div>
+</td>
+</tr>
+</table>
+</div>
+<div id="tabs">
+<ul class="tabLinks">
+<li>
+<a href="#tab0">Tests</a>
+</li>
+</ul>
+<div id="tab0" class="tab">
+<h2>Tests</h2>
+<table>
+<thead>
+<tr>
+<th>Test</th>
+<th>Duration</th>
+<th>Result</th>
+</tr>
+</thead>
+<tr>
+<td class="success">testCompleteDistanceInSingleLetterDifferentStrands</td>
+<td class="success">0.026s</td>
+<td class="success">passed</td>
+</tr>
+<tr>
+<td class="success">testDisallowLeftEmptyStrand</td>
+<td class="success">0.002s</td>
+<td class="success">passed</td>
+</tr>
+<tr>
+<td class="success">testDisallowRightEmptyStrand</td>
+<td class="success">0s</td>
+<td class="success">passed</td>
+</tr>
+<tr>
+<td class="success">testDistanceInLongDifferentStrands</td>
+<td class="success">0s</td>
+<td class="success">passed</td>
+</tr>
+<tr>
+<td class="success">testDistanceInLongIdenticalStrands</td>
+<td class="success">0s</td>
+<td class="success">passed</td>
+</tr>
+<tr>
+<td class="success">testNoDistanceBetweenEmptyStrands</td>
+<td class="success">0s</td>
+<td class="success">passed</td>
+</tr>
+<tr>
+<td class="success">testNoDistanceBetweenShortIdenticalStrands</td>
+<td class="success">0s</td>
+<td class="success">passed</td>
+</tr>
+<tr>
+<td class="success">testValidatesFirstStrandNotLonger</td>
+<td class="success">0s</td>
+<td class="success">passed</td>
+</tr>
+<tr>
+<td class="success">testValidatesSecondStrandNotLonger</td>
+<td class="success">0s</td>
+<td class="success">passed</td>
+</tr>
+</table>
+</div>
+</div>
+<div id="footer">
+<p>
+<div>
+<label class="hidden" id="label-for-line-wrapping-toggle" for="line-wrapping-toggle">Wrap lines
+<input id="line-wrapping-toggle" type="checkbox" autocomplete="off"/>
+</label>
+</div>Generated by 
+<a href="http://www.gradle.org">Gradle 7.5.1</a> at 8 mar 2023, 17:37:36</p>
+</div>
+</div>
+</body>
+</html>

hamming/build/reports/tests/test/css/base-style.css

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+
+body {
+    margin: 0;
+    padding: 0;
+    font-family: sans-serif;
+    font-size: 12pt;
+}
+
+body, a, a:visited {
+    color: #303030;
+}
+
+#content {
+    padding-left: 50px;
+    padding-right: 50px;
+    padding-top: 30px;
+    padding-bottom: 30px;
+}
+
+#content h1 {
+    font-size: 160%;
+    margin-bottom: 10px;
+}
+
+#footer {
+    margin-top: 100px;
+    font-size: 80%;
+    white-space: nowrap;
+}
+
+#footer, #footer a {
+    color: #a0a0a0;
+}
+
+#line-wrapping-toggle {
+    vertical-align: middle;
+}
+
+#label-for-line-wrapping-toggle {
+    vertical-align: middle;
+}
+
+ul {
+    margin-left: 0;
+}
+
+h1, h2, h3 {
+    white-space: nowrap;
+}
+
+h2 {
+    font-size: 120%;
+}
+
+ul.tabLinks {
+    padding-left: 0;
+    padding-top: 10px;
+    padding-bottom: 10px;
+    overflow: auto;
+    min-width: 800px;
+    width: auto !important;
+    width: 800px;
+}
+
+ul.tabLinks li {
+    float: left;
+    height: 100%;
+    list-style: none;
+    padding-left: 10px;
+    padding-right: 10px;
+    padding-top: 5px;
+    padding-bottom: 5px;
+    margin-bottom: 0;
+    -moz-border-radius: 7px;
+    border-radius: 7px;
+    margin-right: 25px;
+    border: solid 1px #d4d4d4;
+    background-color: #f0f0f0;
+}
+
+ul.tabLinks li:hover {
+    background-color: #fafafa;
+}
+
+ul.tabLinks li.selected {
+    background-color: #c5f0f5;
+    border-color: #c5f0f5;
+}
+
+ul.tabLinks a {
+    font-size: 120%;
+    display: block;
+    outline: none;
+    text-decoration: none;
+    margin: 0;
+    padding: 0;
+}
+
+ul.tabLinks li h2 {
+    margin: 0;
+    padding: 0;
+}
+
+div.tab {
+}
+
+div.selected {
+    display: block;
+}
+
+div.deselected {
+    display: none;
+}
+
+div.tab table {
+    min-width: 350px;
+    width: auto !important;
+    width: 350px;
+    border-collapse: collapse;
+}
+
+div.tab th, div.tab table {
+    border-bottom: solid #d0d0d0 1px;
+}
+
+div.tab th {
+    text-align: left;
+    white-space: nowrap;
+    padding-left: 6em;
+}
+
+div.tab th:first-child {
+    padding-left: 0;
+}
+
+div.tab td {
+    white-space: nowrap;
+    padding-left: 6em;
+    padding-top: 5px;
+    padding-bottom: 5px;
+}
+
+div.tab td:first-child {
+    padding-left: 0;
+}
+
+div.tab td.numeric, div.tab th.numeric {
+    text-align: right;
+}
+
+span.code {
+    display: inline-block;
+    margin-top: 0em;
+    margin-bottom: 1em;
+}
+
+span.code pre {
+    font-size: 11pt;
+    padding-top: 10px;
+    padding-bottom: 10px;
+    padding-left: 10px;
+    padding-right: 10px;
+    margin: 0;
+    background-color: #f7f7f7;
+    border: solid 1px #d0d0d0;
+    min-width: 700px;
+    width: auto !important;
+    width: 700px;
+}
+
+span.wrapped pre {
+    word-wrap: break-word;
+    white-space: pre-wrap;
+    word-break: break-all;
+}
+
+label.hidden {
+    display: none;
+}

hamming/build/reports/tests/test/css/style.css

@@ -0,0 +1,84 @@
+
+#summary {
+    margin-top: 30px;
+    margin-bottom: 40px;
+}
+
+#summary table {
+    border-collapse: collapse;
+}
+
+#summary td {
+    vertical-align: top;
+}
+
+.breadcrumbs, .breadcrumbs a {
+    color: #606060;
+}
+
+.infoBox {
+    width: 110px;
+    padding-top: 15px;
+    padding-bottom: 15px;
+    text-align: center;
+}
+
+.infoBox p {
+    margin: 0;
+}
+
+.counter, .percent {
+    font-size: 120%;
+    font-weight: bold;
+    margin-bottom: 8px;
+}
+
+#duration {
+    width: 125px;
+}
+
+#successRate, .summaryGroup {
+    border: solid 2px #d0d0d0;
+    -moz-border-radius: 10px;
+    border-radius: 10px;
+}
+
+#successRate {
+    width: 140px;
+    margin-left: 35px;
+}
+
+#successRate .percent {
+    font-size: 180%;
+}
+
+.success, .success a {
+    color: #008000;
+}
+
+div.success, #successRate.success {
+    background-color: #bbd9bb;
+    border-color: #008000;
+}
+
+.failures, .failures a {
+    color: #b60808;
+}
+
+.skipped, .skipped a {
+    color: #c09853;
+}
+
+div.failures, #successRate.failures {
+    background-color: #ecdada;
+    border-color: #b60808;
+}
+
+ul.linkList {
+    padding-left: 0;
+}
+
+ul.linkList li {
+    list-style: none;
+    margin-bottom: 5px;
+}

hamming/build/reports/tests/test/index.html

@@ -0,0 +1,133 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
+<meta http-equiv="x-ua-compatible" content="IE=edge"/>
+<title>Test results - Test Summary</title>
+<link href="css/base-style.css" rel="stylesheet" type="text/css"/>
+<link href="css/style.css" rel="stylesheet" type="text/css"/>
+<script src="js/report.js" type="text/javascript"></script>
+</head>
+<body>
+<div id="content">
+<h1>Test Summary</h1>
+<div id="summary">
+<table>
+<tr>
+<td>
+<div class="summaryGroup">
+<table>
+<tr>
+<td>
+<div class="infoBox" id="tests">
+<div class="counter">9</div>
+<p>tests</p>
+</div>
+</td>
+<td>
+<div class="infoBox" id="failures">
+<div class="counter">0</div>
+<p>failures</p>
+</div>
+</td>
+<td>
+<div class="infoBox" id="ignored">
+<div class="counter">0</div>
+<p>ignored</p>
+</div>
+</td>
+<td>
+<div class="infoBox" id="duration">
+<div class="counter">0.028s</div>
+<p>duration</p>
+</div>
+</td>
+</tr>
+</table>
+</div>
+</td>
+<td>
+<div class="infoBox success" id="successRate">
+<div class="percent">100%</div>
+<p>successful</p>
+</div>
+</td>
+</tr>
+</table>
+</div>
+<div id="tabs">
+<ul class="tabLinks">
+<li>
+<a href="#tab0">Packages</a>
+</li>
+<li>
+<a href="#tab1">Classes</a>
+</li>
+</ul>
+<div id="tab0" class="tab">
+<h2>Packages</h2>
+<table>
+<thead>
+<tr>
+<th>Package</th>
+<th>Tests</th>
+<th>Failures</th>
+<th>Ignored</th>
+<th>Duration</th>
+<th>Success rate</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td class="success">
+<a href="packages/default-package.html">default-package</a>
+</td>
+<td>9</td>
+<td>0</td>
+<td>0</td>
+<td>0.028s</td>
+<td class="success">100%</td>
+</tr>
+</tbody>
+</table>
+</div>
+<div id="tab1" class="tab">
+<h2>Classes</h2>
+<table>
+<thead>
+<tr>
+<th>Class</th>
+<th>Tests</th>
+<th>Failures</th>
+<th>Ignored</th>
+<th>Duration</th>
+<th>Success rate</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td class="success">
+<a href="classes/HammingTest.html">HammingTest</a>
+</td>
+<td>9</td>
+<td>0</td>
+<td>0</td>
+<td>0.028s</td>
+<td class="success">100%</td>
+</tr>
+</tbody>
+</table>
+</div>
+</div>
+<div id="footer">
+<p>
+<div>
+<label class="hidden" id="label-for-line-wrapping-toggle" for="line-wrapping-toggle">Wrap lines
+<input id="line-wrapping-toggle" type="checkbox" autocomplete="off"/>
+</label>
+</div>Generated by 
+<a href="http://www.gradle.org">Gradle 7.5.1</a> at 8 mar 2023, 17:37:36</p>
+</div>
+</div>
+</body>
+</html>

hamming/build/reports/tests/test/js/report.js

@@ -0,0 +1,194 @@
+(function (window, document) {
+    "use strict";
+
+    var tabs = {};
+
+    function changeElementClass(element, classValue) {
+        if (element.getAttribute("className")) {
+            element.setAttribute("className", classValue);
+        } else {
+            element.setAttribute("class", classValue);
+        }
+    }
+
+    function getClassAttribute(element) {
+        if (element.getAttribute("className")) {
+            return element.getAttribute("className");
+        } else {
+            return element.getAttribute("class");
+        }
+    }
+
+    function addClass(element, classValue) {
+        changeElementClass(element, getClassAttribute(element) + " " + classValue);
+    }
+
+    function removeClass(element, classValue) {
+        changeElementClass(element, getClassAttribute(element).replace(classValue, ""));
+    }
+
+    function initTabs() {
+        var container = document.getElementById("tabs");
+
+        tabs.tabs = findTabs(container);
+        tabs.titles = findTitles(tabs.tabs);
+        tabs.headers = findHeaders(container);
+        tabs.select = select;
+        tabs.deselectAll = deselectAll;
+        tabs.select(0);
+
+        return true;
+    }
+
+    function getCheckBox() {
+        return document.getElementById("line-wrapping-toggle");
+    }
+
+    function getLabelForCheckBox() {
+        return document.getElementById("label-for-line-wrapping-toggle");
+    }
+
+    function findCodeBlocks() {
+        var spans = document.getElementById("tabs").getElementsByTagName("span");
+        var codeBlocks = [];
+        for (var i = 0; i < spans.length; ++i) {
+            if (spans[i].className.indexOf("code") >= 0) {
+                codeBlocks.push(spans[i]);
+            }
+        }
+        return codeBlocks;
+    }
+
+    function forAllCodeBlocks(operation) {
+        var codeBlocks = findCodeBlocks();
+
+        for (var i = 0; i < codeBlocks.length; ++i) {
+            operation(codeBlocks[i], "wrapped");
+        }
+    }
+
+    function toggleLineWrapping() {
+        var checkBox = getCheckBox();
+
+        if (checkBox.checked) {
+            forAllCodeBlocks(addClass);
+        } else {
+            forAllCodeBlocks(removeClass);
+        }
+    }
+
+    function initControls() {
+        if (findCodeBlocks().length > 0) {
+            var checkBox = getCheckBox();
+            var label = getLabelForCheckBox();
+
+            checkBox.onclick = toggleLineWrapping;
+            checkBox.checked = false;
+
+            removeClass(label, "hidden");
+         }
+    }
+
+    function switchTab() {
+        var id = this.id.substr(1);
+
+        for (var i = 0; i < tabs.tabs.length; i++) {
+            if (tabs.tabs[i].id === id) {
+                tabs.select(i);
+                break;
+            }
+        }
+
+        return false;
+    }
+
+    function select(i) {
+        this.deselectAll();
+
+        changeElementClass(this.tabs[i], "tab selected");
+        changeElementClass(this.headers[i], "selected");
+
+        while (this.headers[i].firstChild) {
+            this.headers[i].removeChild(this.headers[i].firstChild);
+        }
+
+        var h2 = document.createElement("H2");
+
+        h2.appendChild(document.createTextNode(this.titles[i]));
+        this.headers[i].appendChild(h2);
+    }
+
+    function deselectAll() {
+        for (var i = 0; i < this.tabs.length; i++) {
+            changeElementClass(this.tabs[i], "tab deselected");
+            changeElementClass(this.headers[i], "deselected");
+
+            while (this.headers[i].firstChild) {
+                this.headers[i].removeChild(this.headers[i].firstChild);
+            }
+
+            var a = document.createElement("A");
+
+            a.setAttribute("id", "ltab" + i);
+            a.setAttribute("href", "#tab" + i);
+            a.onclick = switchTab;
+            a.appendChild(document.createTextNode(this.titles[i]));
+
+            this.headers[i].appendChild(a);
+        }
+    }
+
+    function findTabs(container) {
+        return findChildElements(container, "DIV", "tab");
+    }
+
+    function findHeaders(container) {
+        var owner = findChildElements(container, "UL", "tabLinks");
+        return findChildElements(owner[0], "LI", null);
+    }
+
+    function findTitles(tabs) {
+        var titles = [];
+
+        for (var i = 0; i < tabs.length; i++) {
+            var tab = tabs[i];
+            var header = findChildElements(tab, "H2", null)[0];
+
+            header.parentNode.removeChild(header);
+
+            if (header.innerText) {
+                titles.push(header.innerText);
+            } else {
+                titles.push(header.textContent);
+            }
+        }
+
+        return titles;
+    }
+
+    function findChildElements(container, name, targetClass) {
+        var elements = [];
+        var children = container.childNodes;
+
+        for (var i = 0; i < children.length; i++) {
+            var child = children.item(i);
+
+            if (child.nodeType === 1 && child.nodeName === name) {
+                if (targetClass && child.className.indexOf(targetClass) < 0) {
+                    continue;
+                }
+
+                elements.push(child);
+            }
+        }
+
+        return elements;
+    }
+
+    // Entry point.
+
+    window.onload = function() {
+        initTabs();
+        initControls();
+    };
+} (window, window.document));

hamming/build/reports/tests/test/packages/default-package.html

@@ -0,0 +1,103 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
+<meta http-equiv="x-ua-compatible" content="IE=edge"/>
+<title>Test results - Default package</title>
+<link href="../css/base-style.css" rel="stylesheet" type="text/css"/>
+<link href="../css/style.css" rel="stylesheet" type="text/css"/>
+<script src="../js/report.js" type="text/javascript"></script>
+</head>
+<body>
+<div id="content">
+<h1>Default package</h1>
+<div class="breadcrumbs">
+<a href="../index.html">all</a> &gt; default-package</div>
+<div id="summary">
+<table>
+<tr>
+<td>
+<div class="summaryGroup">
+<table>
+<tr>
+<td>
+<div class="infoBox" id="tests">
+<div class="counter">9</div>
+<p>tests</p>
+</div>
+</td>
+<td>
+<div class="infoBox" id="failures">
+<div class="counter">0</div>
+<p>failures</p>
+</div>
+</td>
+<td>
+<div class="infoBox" id="ignored">
+<div class="counter">0</div>
+<p>ignored</p>
+</div>
+</td>
+<td>
+<div class="infoBox" id="duration">
+<div class="counter">0.028s</div>
+<p>duration</p>
+</div>
+</td>
+</tr>
+</table>
+</div>
+</td>
+<td>
+<div class="infoBox success" id="successRate">
+<div class="percent">100%</div>
+<p>successful</p>
+</div>
+</td>
+</tr>
+</table>
+</div>
+<div id="tabs">
+<ul class="tabLinks">
+<li>
+<a href="#tab0">Classes</a>
+</li>
+</ul>
+<div id="tab0" class="tab">
+<h2>Classes</h2>
+<table>
+<thread>
+<tr>
+<th>Class</th>
+<th>Tests</th>
+<th>Failures</th>
+<th>Ignored</th>
+<th>Duration</th>
+<th>Success rate</th>
+</tr>
+</thread>
+<tr>
+<td class="success">
+<a href="../classes/HammingTest.html">HammingTest</a>
+</td>
+<td>9</td>
+<td>0</td>
+<td>0</td>
+<td>0.028s</td>
+<td class="success">100%</td>
+</tr>
+</table>
+</div>
+</div>
+<div id="footer">
+<p>
+<div>
+<label class="hidden" id="label-for-line-wrapping-toggle" for="line-wrapping-toggle">Wrap lines
+<input id="line-wrapping-toggle" type="checkbox" autocomplete="off"/>
+</label>
+</div>Generated by 
+<a href="http://www.gradle.org">Gradle 7.5.1</a> at 8 mar 2023, 17:37:36</p>
+</div>
+</div>
+</body>
+</html>

hamming/build/test-results/test/TEST-HammingTest.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<testsuite name="HammingTest" tests="9" skipped="0" failures="0" errors="0" timestamp="2023-03-08T16:37:36" hostname="giacomo-optiplex3080" time="0.03">
+  <properties/>
+  <testcase name="testCompleteDistanceInSingleLetterDifferentStrands" classname="HammingTest" time="0.026"/>
+  <testcase name="testNoDistanceBetweenEmptyStrands" classname="HammingTest" time="0.0"/>
+  <testcase name="testNoDistanceBetweenShortIdenticalStrands" classname="HammingTest" time="0.0"/>
+  <testcase name="testDisallowLeftEmptyStrand" classname="HammingTest" time="0.002"/>
+  <testcase name="testDistanceInLongIdenticalStrands" classname="HammingTest" time="0.0"/>
+  <testcase name="testDisallowRightEmptyStrand" classname="HammingTest" time="0.0"/>
+  <testcase name="testDistanceInLongDifferentStrands" classname="HammingTest" time="0.0"/>
+  <testcase name="testValidatesFirstStrandNotLonger" classname="HammingTest" time="0.0"/>
+  <testcase name="testValidatesSecondStrandNotLonger" classname="HammingTest" time="0.0"/>
+  <system-out><![CDATA[]]></system-out>
+  <system-err><![CDATA[]]></system-err>
+</testsuite>

hamming/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.5.1-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

hamming/gradlew

@@ -0,0 +1,240 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

hamming/gradlew.bat

@@ -0,0 +1,91 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

hamming/src/main/java/Hamming.java

@@ -0,0 +1,23 @@
+public class Hamming {
+    private String leftStrand;
+    private String rightStrand;
+    public Hamming(String leftStrand, String rightStrand) {
+        if(!(leftStrand.length() == 0 && rightStrand.length() == 0)) {
+            if(leftStrand.length() == 0) throw new IllegalArgumentException("left strand must not be empty.");
+            if(rightStrand.length() == 0) throw new IllegalArgumentException("right strand must not be empty.");
+        }
+
+        if(leftStrand.length() != rightStrand.length()) throw new IllegalArgumentException("leftStrand and rightStrand must be of equal length.");
+        this.leftStrand = leftStrand;
+        this.rightStrand = rightStrand;
+    }
+
+    public int getHammingDistance() {
+        int hamming = 0;
+        for(int i = 0; i < leftStrand.length(); i++) {
+            if(leftStrand.charAt(i) != rightStrand.charAt(i)) hamming++;
+        }
+
+        return hamming;
+    }
+}

hamming/src/test/java/HammingTest.java

@@ -0,0 +1,62 @@
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
+
+import org.junit.Ignore;
+import org.junit.Test;
+
+public class HammingTest {
+
+    @Test
+    public void testNoDistanceBetweenEmptyStrands() {
+        assertThat(new Hamming("", "").getHammingDistance()).isEqualTo(0);
+    }
+
+    @Test
+    public void testNoDistanceBetweenShortIdenticalStrands() {
+        assertThat(new Hamming("A", "A").getHammingDistance()).isEqualTo(0);
+    }
+
+    @Test
+    public void testCompleteDistanceInSingleLetterDifferentStrands() {
+        assertThat(new Hamming("G", "T").getHammingDistance()).isEqualTo(1);
+    }
+
+    @Test
+    public void testDistanceInLongIdenticalStrands() {
+        assertThat(new Hamming("GGACTGAAATCTG", "GGACTGAAATCTG").getHammingDistance()).isEqualTo(0);
+    }
+
+    @Test
+    public void testDistanceInLongDifferentStrands() {
+        assertThat(new Hamming("GGACGGATTCTG", "AGGACGGATTCT").getHammingDistance()).isEqualTo(9);
+    }
+
+    @Test
+    public void testValidatesFirstStrandNotLonger() {
+        assertThatExceptionOfType(IllegalArgumentException.class)
+                .isThrownBy(() -> new Hamming("AATG", "AAA"))
+                .withMessage("leftStrand and rightStrand must be of equal length.");
+    }
+
+    @Test
+    public void testValidatesSecondStrandNotLonger() {
+        assertThatExceptionOfType(IllegalArgumentException.class)
+                .isThrownBy(() -> new Hamming("ATA", "AGTG"))
+                .withMessage("leftStrand and rightStrand must be of equal length.");
+    }
+
+    @Test
+    public void testDisallowLeftEmptyStrand() {
+        assertThatExceptionOfType(IllegalArgumentException.class)
+                .isThrownBy(() -> new Hamming("", "G"))
+                .withMessage("left strand must not be empty.");
+    }
+
+    @Test
+    public void testDisallowRightEmptyStrand() {
+        assertThatExceptionOfType(IllegalArgumentException.class)
+                .isThrownBy(() -> new Hamming("G", ""))
+                .withMessage("right strand must not be empty.");
+    }
+
+}