Aggiunti alcuni esercizi di java.

gigasecond/.exercism/config.json

@@ -0,0 +1,40 @@
+{
+  "authors": [],
+  "contributors": [
+    "FridaTveit",
+    "jmrunkle",
+    "jtigger",
+    "kytrinyx",
+    "lemoncurry",
+    "LukBukkit",
+    "matthewmorgan",
+    "mirkoperillo",
+    "morrme",
+    "msomji",
+    "muzimuzhi",
+    "SleeplessByte",
+    "Smarticles101",
+    "sshine",
+    "stkent",
+    "Valkryst",
+    "vdemeester",
+    "Zaldrick"
+  ],
+  "files": {
+    "solution": [
+      "src/main/java/Gigasecond.java"
+    ],
+    "test": [
+      "src/test/java/GigasecondTest.java"
+    ],
+    "example": [
+      ".meta/src/reference/java/Gigasecond.java"
+    ],
+    "invalidator": [
+      "build.gradle"
+    ]
+  },
+  "blurb": "Given a moment, determine the moment that would be after a gigasecond has passed.",
+  "source": "Chapter 9 in Chris Pine's online Learn to Program tutorial.",
+  "source_url": "http://pine.fm/LearnToProgram/?Chapter=09"
+}

gigasecond/.exercism/metadata.json

@@ -0,0 +1 @@
+{"track":"java","exercise":"gigasecond","id":"748d11fb993247d49c5192c22d8fb44b","url":"https://exercism.org/tracks/java/exercises/gigasecond","handle":"GicoProgram","is_requester":true,"auto_approve":false}

gigasecond/.gradle/buildOutputCleanup/cache.properties

@@ -0,0 +1,2 @@
+#Wed Mar 08 17:40:04 CET 2023
+gradle.version=7.5.1

gigasecond/.idea/.gitignore

@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml

gigasecond/.idea/compiler.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="11" />
+  </component>
+</project>

gigasecond/.idea/gradle.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <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>

gigasecond/.idea/jarRepositories.xml

@@ -0,0 +1,20 @@
+<?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>

gigasecond/.idea/misc.xml

@@ -0,0 +1,5 @@
+<?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>

gigasecond/HELP.md

@@ -0,0 +1,131 @@
+# 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/Gigasecond.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).

gigasecond/README.md

@@ -0,0 +1,65 @@
+# Gigasecond
+
+Welcome to Gigasecond on Exercism's Java Track.
+If you need help running the tests or submitting your code, check out `HELP.md`.
+
+## Introduction
+
+The way we measure time is kind of messy.
+We have 60 seconds in a minute, and 60 minutes in an hour.
+This comes from ancient Babylon, where they used 60 as the basis for their number system.
+We have 24 hours in a day, 7 days in a week, and how many days in a month?
+Well, for days in a month it depends not only on which month it is, but also on what type of calendar is used in the country you live in.
+
+What if, instead, we only use seconds to express time intervals?
+Then we can use metric system prefixes for writing large numbers of seconds in more easily comprehensible quantities.
+
+- A food recipe might explain that you need to let the brownies cook in the oven for two kiloseconds (that's two thousand seconds).
+- Perhaps you and your family would travel to somewhere exotic for two megaseconds (that's two million seconds).
+- And if you and your spouse were married for _a thousand million_ seconds, you would celebrate your one gigasecond anniversary.
+
+```exercism/note
+If we ever colonize Mars or some other planet, measuring time is going to get even messier.
+If someone says "year" do they mean a year on Earth or a year on Mars?
+
+The idea for this exercise came from the science fiction novel ["A Deepness in the Sky"][vinge-novel] by author Vernor Vinge.
+In it the author uses the metric system as the basis for time measurements.
+
+[vinge-novel]: https://www.tor.com/2017/08/03/science-fiction-with-something-for-everyone-a-deepness-in-the-sky-by-vernor-vinge/
+```
+
+## Instructions
+
+Your task is to determine the date and time one gigasecond after a certain date.
+
+A gigasecond is one thousand million seconds.
+That is a one with nine zeros after it.
+
+If you were born on _January 24th, 2015 at 22:00 (10:00:00pm)_, then you would be a gigasecond old on _October 2nd, 2046 at 23:46:40 (11:46:40pm)_.
+
+## Source
+
+### Contributed to by
+
+- @FridaTveit
+- @jmrunkle
+- @jtigger
+- @kytrinyx
+- @lemoncurry
+- @LukBukkit
+- @matthewmorgan
+- @mirkoperillo
+- @morrme
+- @msomji
+- @muzimuzhi
+- @SleeplessByte
+- @Smarticles101
+- @sshine
+- @stkent
+- @Valkryst
+- @vdemeester
+- @Zaldrick
+
+### Based on
+
+Chapter 9 in Chris Pine's online Learn to Program tutorial. - http://pine.fm/LearnToProgram/?Chapter=09

gigasecond/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"]
+  }
+}

gigasecond/build/reports/tests/test/classes/GigasecondTest.html

@@ -0,0 +1,116 @@
+<!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 GigasecondTest</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 GigasecondTest</h1>
+<div class="breadcrumbs">
+<a href="../index.html">all</a> &gt; 
+<a href="../packages/default-package.html">default-package</a> &gt; GigasecondTest</div>
+<div id="summary">
+<table>
+<tr>
+<td>
+<div class="summaryGroup">
+<table>
+<tr>
+<td>
+<div class="infoBox" id="tests">
+<div class="counter">5</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">0.003s</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">afterEpochTime</td>
+<td class="success">0s</td>
+<td class="success">passed</td>
+</tr>
+<tr>
+<td class="success">beforeEpochTime</td>
+<td class="success">0s</td>
+<td class="success">passed</td>
+</tr>
+<tr>
+<td class="success">modernTime</td>
+<td class="success">0s</td>
+<td class="success">passed</td>
+</tr>
+<tr>
+<td class="success">withFullTimeSpecified</td>
+<td class="success">0.003s</td>
+<td class="success">passed</td>
+</tr>
+<tr>
+<td class="success">withFullTimeSpecifiedAndDayRollover</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, 17:47:51</p>
+</div>
+</div>
+</body>
+</html>

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

@@ -0,0 +1,179 @@
+
+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;
+}

gigasecond/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;
+}

gigasecond/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">5</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">0.003s</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>5</td>
+<td>0</td>
+<td>0</td>
+<td>0.003s</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/GigasecondTest.html">GigasecondTest</a>
+</td>
+<td>5</td>
+<td>0</td>
+<td>0</td>
+<td>0.003s</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, 17:47:51</p>
+</div>
+</div>
+</body>
+</html>

gigasecond/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));

gigasecond/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">5</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">0.003s</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/GigasecondTest.html">GigasecondTest</a>
+</td>
+<td>5</td>
+<td>0</td>
+<td>0</td>
+<td>0.003s</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, 17:47:51</p>
+</div>
+</div>
+</body>
+</html>

gigasecond/build/test-results/test/TEST-GigasecondTest.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<testsuite name="GigasecondTest" tests="5" skipped="0" failures="0" errors="0" timestamp="2023-03-08T16:47:51" hostname="giacomo-optiplex3080" time="0.004">
+  <properties/>
+  <testcase name="withFullTimeSpecified" classname="GigasecondTest" time="0.003"/>
+  <testcase name="modernTime" classname="GigasecondTest" time="0.0"/>
+  <testcase name="beforeEpochTime" classname="GigasecondTest" time="0.0"/>
+  <testcase name="afterEpochTime" classname="GigasecondTest" time="0.0"/>
+  <testcase name="withFullTimeSpecifiedAndDayRollover" classname="GigasecondTest" time="0.0"/>
+  <system-out><![CDATA[]]></system-out>
+  <system-err><![CDATA[]]></system-err>
+</testsuite>

gigasecond/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

gigasecond/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 "$JAVACMD" "$@"

gigasecond/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

gigasecond/src/main/java/Gigasecond.java

@@ -0,0 +1,18 @@
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+
+public class Gigasecond {
+    private long seconds = 1000000000;
+    LocalDateTime afterGiga;
+    public Gigasecond(LocalDate moment) {
+        this.afterGiga = moment.atStartOfDay();
+    }
+
+    public Gigasecond(LocalDateTime moment) {
+        this.afterGiga = moment;
+    }
+
+    public LocalDateTime getDateTime() {
+        return afterGiga.plusSeconds(seconds);
+    }
+}

gigasecond/src/test/java/GigasecondTest.java

@@ -0,0 +1,46 @@
+import org.junit.Test;
+import org.junit.Ignore;
+
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.Month;
+
+import static org.junit.Assert.assertEquals;
+
+public class GigasecondTest {
+
+    @Test
+    public void modernTime() {
+        Gigasecond gigaSecond = new Gigasecond(LocalDate.of(2011, Month.APRIL, 25));
+
+        assertEquals(LocalDateTime.of(2043, Month.JANUARY, 1, 1, 46, 40), gigaSecond.getDateTime());
+    }
+
+    @Test
+    public void afterEpochTime() {
+        Gigasecond gigaSecond = new Gigasecond(LocalDate.of(1977, Month.JUNE, 13));
+
+        assertEquals(LocalDateTime.of(2009, Month.FEBRUARY, 19, 1, 46, 40), gigaSecond.getDateTime());
+    }
+
+    @Test
+    public void beforeEpochTime() {
+        Gigasecond gigaSecond = new Gigasecond(LocalDate.of(1959, Month.JULY, 19));
+
+        assertEquals(LocalDateTime.of(1991, Month.MARCH, 27, 1, 46, 40), gigaSecond.getDateTime());
+    }
+
+    @Test
+    public void withFullTimeSpecified() {
+        Gigasecond gigaSecond = new Gigasecond(LocalDateTime.of(2015, Month.JANUARY, 24, 22, 0, 0));
+
+        assertEquals(LocalDateTime.of(2046, Month.OCTOBER, 2, 23, 46, 40), gigaSecond.getDateTime());
+    }
+
+    @Test
+    public void withFullTimeSpecifiedAndDayRollover() {
+        Gigasecond gigaSecond = new Gigasecond(LocalDateTime.of(2015, Month.JANUARY, 24, 23, 59, 59));
+
+        assertEquals(LocalDateTime.of(2046, Month.OCTOBER, 3, 1, 46, 39), gigaSecond.getDateTime());
+    }
+}