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Chloe Fontenot 🏳️‍⚧️ 2023-01-26 12:27:18 -06:00
parent fe3eb30a9c
commit 601b7ebc0c
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123
Semester 2/Assignments/lab2_CalebFontenot/QuadraticEquation.html Normal file
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<head>
<title>QuadraticEquation.java</title>
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<table width="100%"><tr><td align="center">/home/caleb/ASDV-Java/Semester 2/Assignments/lab2_CalebFontenot/src/main/java/com/calebfontenot/lab5_calebfontenot/QuadraticEquation.java</td></tr></table>
<pre>
<span class="comment">/*</span>
<span class="comment"> * Click </span><span class="ST0">nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt</span><span class="comment"> to change this license</span>
<span class="comment"> * Click </span><span class="ST0">nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java</span><span class="comment"> to edit this template</span>
<span class="comment"> */</span>
<span class="literal">package</span> com.calebfontenot.lab5_calebfontenot;
<span class="comment">/**</span>
<span class="comment"> *</span>
<span class="comment"> * </span><span class="ST1">@author</span> <span class="comment">caleb</span>
<span class="comment">*/</span>
<span class="literal">public</span> <span class="literal">class</span> QuadraticEquation {
<span class="literal">private</span> <span class="literal">double</span> <span class="ST2">a</span>;
<span class="literal">private</span> <span class="literal">double</span> <span class="ST2">b</span>;
<span class="literal">private</span> <span class="literal">double</span> <span class="ST2">c</span>;
<span class="literal">public</span> QuadraticEquation(<span class="literal">double</span> a, <span class="literal">double</span> b, <span class="literal">double</span> c)
{
<span class="literal">this</span>.<span class="ST2">a</span> = a;
<span class="literal">this</span>.<span class="ST2">b</span> = b;
<span class="literal">this</span>.<span class="ST2">c</span> = c;
}
<span class="literal">public</span> <span class="literal">double</span> <span class="ST3">getDiscriminant</span>()
{
<span class="literal">return</span> <span class="ST2">b</span> * <span class="ST2">b</span> - <span class="number">4</span> * <span class="ST2">a</span> * <span class="ST2">c</span>;
}
<span class="literal">public</span> <span class="literal">double</span> <span class="ST3">getRoot1</span>()
{
<span class="literal">if</span> (getDiscriminant() &lt; <span class="number">0</span>) {
<span class="literal">return</span> -<span class="number">88888888</span>;
}
<span class="literal">return</span> (<span class="ST2">b</span> + Math.<span class="ST4">sqrt</span>(<span class="ST2">b</span> * <span class="ST2">b</span> - <span class="number">4</span> * <span class="ST2">a</span> * <span class="ST2">c</span>)) / (<span class="number">2</span> * <span class="ST2">a</span>);
}
<span class="literal">public</span> <span class="literal">double</span> <span class="ST3">getRoot2</span>()
{
<span class="literal">if</span> (getDiscriminant() &lt; <span class="number">0</span>) {
<span class="literal">return</span> -<span class="number">88888888</span>;
}
<span class="literal">return</span> (-<span class="ST2">b</span> + Math.<span class="ST4">sqrt</span>(<span class="ST2">b</span> * <span class="ST2">b</span> - <span class="number">4</span> * <span class="ST2">a</span> * <span class="ST2">c</span>)) / (<span class="number">2</span> * <span class="ST2">a</span>);
<span class="comment">//return getDiscriminant() &lt; 0 ? 0</span>
<span class="comment">// : ((-b) + Math.sqrt(Math.pow(b, 2) - 4 * a * c)) / (2 * a);</span>
}
@Override
<span class="literal">public</span> String <span class="ST3">toString</span>()
{
<span class="literal">return</span> <span class="string">&quot;</span><span class="string">QuadraticEquation{</span><span class="string">&quot;</span> + <span class="string">&quot;</span><span class="string">a=</span><span class="string">&quot;</span> + <span class="ST2">a</span> + <span class="string">&quot;</span><span class="string">, b=</span><span class="string">&quot;</span> + <span class="ST2">b</span> + <span class="string">&quot;</span><span class="string">, c=</span><span class="string">&quot;</span> + <span class="ST2">c</span> + <span class="string">&#39;</span><span class="string">}</span><span class="string">&#39;</span>;
}
<span class="comment">/**</span>
<span class="comment"> * </span><span class="comment">Get</span> <span class="comment">the</span> <span class="comment">value</span> <span class="comment">of</span> <span class="comment">b</span>
<span class="comment"> *</span>
<span class="comment"> * </span><span class="ST1">@return</span> <span class="comment">the</span> <span class="comment">value</span> <span class="comment">of</span> <span class="comment">b</span>
<span class="comment">*/</span>
<span class="literal">public</span> <span class="literal">double</span> <span class="ST3">getB</span>()
{
<span class="literal">return</span> <span class="ST2">b</span>;
}
<span class="comment">/**</span>
<span class="comment"> * </span><span class="comment">Get</span> <span class="comment">the</span> <span class="comment">value</span> <span class="comment">of</span> <span class="comment">c</span>
<span class="comment"> *</span>
<span class="comment"> * </span><span class="ST1">@return</span> <span class="comment">the</span> <span class="comment">value</span> <span class="comment">of</span> <span class="comment">c</span>
<span class="comment">*/</span>
<span class="literal">public</span> <span class="literal">double</span> <span class="ST3">getC</span>()
{
<span class="literal">return</span> <span class="ST2">c</span>;
}
<span class="comment">/**</span>
<span class="comment"> * </span><span class="comment">Get</span> <span class="comment">the</span> <span class="comment">value</span> <span class="comment">of</span> <span class="comment">a</span>
<span class="comment"> *</span>
<span class="comment"> * </span><span class="ST1">@return</span> <span class="comment">the</span> <span class="comment">value</span> <span class="comment">of</span> <span class="comment">a</span>
<span class="comment">*/</span>
<span class="literal">public</span> <span class="literal">double</span> <span class="ST3">getA</span>()
{
<span class="literal">return</span> <span class="ST2">a</span>;
}
<span class="literal">public</span> <span class="literal">static</span> <span class="literal">void</span> <span class="ST5">main</span>(String[] args)
{
QuadraticEquation eq1 = <span class="literal">new</span> QuadraticEquation(<span class="number">1</span>, -<span class="number">4</span>, <span class="number">4</span>);
System.<span class="ST6">out</span>.println(eq1);
System.<span class="ST6">out</span>.println(eq1.getRoot1());
System.<span class="ST6">out</span>.println(eq1.getRoot2());
}
}
</pre></body>
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>TakeQuiz.java</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<style type="text/css">
<!--
body {color: #a9b7c6; background-color: #2b2b2b; font-family: monospace}
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<table width="100%"><tr><td align="center">/home/caleb/ASDV-Java/Semester 2/Assignments/lab2_CalebFontenot/src/main/java/com/calebfontenot/lab5_calebfontenot/TakeQuiz.java</td></tr></table>
<pre>
<span class="comment">/*</span>
<span class="comment"> * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license</span>
<span class="comment"> * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template</span>
<span class="comment"> */</span>
<span class="literal">package</span> com.calebfontenot.lab5_calebfontenot;
<span class="literal">import</span> java.util.Scanner;
<span class="comment">/**</span>
<span class="comment"> *</span>
<span class="comment"> * </span><span class="ST0">@author</span> <span class="comment">caleb</span>
<span class="comment">*/</span>
<span class="literal">public</span> <span class="literal">class</span> TakeQuiz {
<span class="literal">public</span> <span class="literal">static</span> <span class="literal">void</span> takeQuiz(TrueFalseQuiz quiz) {
<span class="comment">//&gt;Create a scanner for reading</span>
Scanner scan = <span class="literal">new</span> Scanner(System.in);
String s = <span class="string">&quot;&quot;</span>;
<span class="comment">//&gt;do forever</span>
<span class="literal">do</span>
{
System.out.println(<span class="string">&quot;</span><span class="string">q</span><span class="literal">\\</span><span class="string">Q to quit</span><span class="string">&quot;</span>);
System.out.println(<span class="string">&quot;</span><span class="string">n</span><span class="literal">\\</span><span class="string">N next question</span><span class="string">&quot;</span>);
s = scan.next();
<span class="literal">if</span> (s.compareToIgnoreCase(<span class="string">&quot;</span><span class="string">q</span><span class="string">&quot;</span>) == <span class="number">0</span>)
{
<span class="literal">break</span>;
}
<span class="literal">else</span> <span class="literal">if</span> (<span class="string">&quot;</span><span class="string">n</span><span class="string">&quot;</span>.compareToIgnoreCase(s) == <span class="number">0</span>)
{
System.out.println(<span class="string">&quot;</span><span class="string">+++++++++++</span><span class="string">&quot;</span> + quiz.nextQuestion() + <span class="string">&quot;</span><span class="string">+++++++++++</span><span class="string">&quot;</span>);
String answer = <span class="string">&quot;&quot;</span>;
<span class="literal">do</span>
{
System.out.println(<span class="string">&quot;</span><span class="literal">\t</span><span class="string">t</span><span class="literal">\\</span><span class="string">T for true</span><span class="string">&quot;</span>);
System.out.println(<span class="string">&quot;</span><span class="literal">\t</span><span class="string">f</span><span class="literal">\\</span><span class="string">F for false</span><span class="string">&quot;</span>);
answer = scan.next();
<span class="literal">if</span> (<span class="string">&quot;</span><span class="string">t</span><span class="string">&quot;</span>.compareToIgnoreCase(answer) != <span class="number">0</span> &amp;&amp; <span class="string">&quot;</span><span class="string">f</span><span class="string">&quot;</span>.compareToIgnoreCase(answer) != <span class="number">0</span>)
{
System.out.println(<span class="string">&quot;</span><span class="literal">\t</span><span class="literal">\t</span><span class="string">f INVALID CHOICE</span><span class="string">&quot;</span>);
}
}
<span class="literal">while</span> (<span class="string">&quot;</span><span class="string">t</span><span class="string">&quot;</span>.compareToIgnoreCase(answer) != <span class="number">0</span> &amp;&amp; <span class="string">&quot;</span><span class="string">f</span><span class="string">&quot;</span>.compareToIgnoreCase(answer) != <span class="number">0</span>);
<span class="literal">boolean</span> convertAnswerToBoolean = <span class="string">&quot;</span><span class="string">t</span><span class="string">&quot;</span>.compareToIgnoreCase(answer) == <span class="number">0</span>;
System.out.println(quiz.isTrue() == convertAnswerToBoolean
? <span class="string">&quot;</span><span class="literal">\t</span><span class="literal">\t</span><span class="string">---------correct</span><span class="string">&quot;</span>
: <span class="string">&quot;</span><span class="literal">\t</span><span class="literal">\t</span><span class="string">---------incorrect</span><span class="string">&quot;</span>);
}
<span class="literal">else</span>
{
System.out.println(<span class="string">&quot;</span><span class="string">Invalid choice. Try again</span><span class="string">&quot;</span>);
}
}
<span class="literal">while</span> (<span class="literal">true</span>);
}
<span class="literal">public</span> <span class="literal">static</span> <span class="literal">void</span> main(String[] args)
{
TrueFalseQuiz quiz = <span class="literal">new</span> TrueFalseQuiz();
TakeQuiz.takeQuiz(quiz);
<span class="literal">for</span> (<span class="literal">int</span> i = <span class="number">0</span>; i &lt; quiz.getTrueFalseQuestions().length; ++i) {
System.out.println(quiz.getTrueFalseQuestions()[i].getWhenLastUsed());
}
}
}
</pre></body>
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Semester 2/Assignments/lab2_CalebFontenot/TrueFalseQuestion.html Normal file
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>TrueFalseQuestion.java</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<style type="text/css">
<!--
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<body>
<table width="100%"><tr><td align="center">/home/caleb/ASDV-Java/Semester 2/Assignments/lab2_CalebFontenot/src/main/java/com/calebfontenot/lab5_calebfontenot/TrueFalseQuestion.java</td></tr></table>
<pre>
<span class="comment">/*</span>
<span class="comment"> * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license</span>
<span class="comment"> * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template</span>
<span class="comment"> */</span>
<span class="literal">package</span> com.calebfontenot.lab5_calebfontenot;
<span class="literal">import</span> java.util.Date;
<span class="comment">/**</span>
<span class="comment"> *</span>
<span class="comment"> * </span><span class="ST0">@author</span> <span class="comment">caleb</span>
<span class="comment">*/</span>
<span class="literal">public</span> <span class="literal">class</span> TrueFalseQuestion {
<span class="literal">private</span> String question;
<span class="literal">private</span> <span class="literal">boolean</span> isTrue;
<span class="literal">private</span> Date whenLastUsed;
<span class="literal">public</span> TrueFalseQuestion(){}
<span class="literal">public</span> TrueFalseQuestion(String question, <span class="literal">boolean</span> isTrue, Date whenLastUsed) {
<span class="literal">this</span>.question = question;
<span class="literal">this</span>.isTrue = isTrue;
<span class="literal">this</span>.whenLastUsed = whenLastUsed;
}
<span class="comment">/**</span>
<span class="comment"> * </span><span class="comment">Get</span> <span class="comment">the</span> <span class="comment">value</span> <span class="comment">of</span> <span class="comment">whenLastUsed</span>
<span class="comment"> *</span>
<span class="comment"> * </span><span class="ST0">@return</span> <span class="comment">the</span> <span class="comment">value</span> <span class="comment">of</span> <span class="comment">whenLastUsed</span>
<span class="comment">*/</span>
<span class="literal">public</span> Date getWhenLastUsed()
{
<span class="literal">return</span> whenLastUsed;
}
<span class="comment">/**</span>
<span class="comment"> * </span><span class="comment">Set</span> <span class="comment">the</span> <span class="comment">value</span> <span class="comment">of</span> <span class="comment">whenLastUsed</span>
<span class="comment"> *</span>
<span class="comment"> * </span><span class="ST0">@param</span> <span class="comment">whenLastUsed</span> <span class="comment">new</span> <span class="comment">value</span> <span class="comment">of</span> <span class="comment">whenLastUsed</span>
<span class="comment">*/</span>
<span class="literal">public</span> <span class="literal">void</span> setWhenLastUsed(Date whenLastUsed)
{
<span class="literal">this</span>.whenLastUsed = whenLastUsed;
}
<span class="comment">/**</span>
<span class="comment"> * </span><span class="comment">Get</span> <span class="comment">the</span> <span class="comment">value</span> <span class="comment">of</span> <span class="comment">isTrue</span>
<span class="comment"> *</span>
<span class="comment"> * </span><span class="ST0">@return</span> <span class="comment">the</span> <span class="comment">value</span> <span class="comment">of</span> <span class="comment">isTrue</span>
<span class="comment">*/</span>
<span class="literal">public</span> <span class="literal">boolean</span> isIsTrue()
{
<span class="literal">return</span> isTrue;
}
<span class="comment">/**</span>
<span class="comment"> * </span><span class="comment">Set</span> <span class="comment">the</span> <span class="comment">value</span> <span class="comment">of</span> <span class="comment">isTrue</span>
<span class="comment"> *</span>
<span class="comment"> * </span><span class="ST0">@param</span> <span class="comment">isTrue</span> <span class="comment">new</span> <span class="comment">value</span> <span class="comment">of</span> <span class="comment">isTrue</span>
<span class="comment">*/</span>
<span class="literal">public</span> <span class="literal">void</span> setIsTrue(<span class="literal">boolean</span> isTrue)
{
<span class="literal">this</span>.isTrue = isTrue;
}
<span class="comment">/**</span>
<span class="comment"> * </span><span class="comment">Get</span> <span class="comment">the</span> <span class="comment">value</span> <span class="comment">of</span> <span class="comment">question</span>
<span class="comment"> *</span>
<span class="comment"> * </span><span class="ST0">@return</span> <span class="comment">the</span> <span class="comment">value</span> <span class="comment">of</span> <span class="comment">question</span>
<span class="comment">*/</span>
<span class="literal">public</span> String getQuestion()
{
<span class="literal">return</span> question;
}
<span class="comment">/**</span><span class="comment">Sets</span> <span class="comment">the</span> <span class="comment">question</span> <span class="comment">to</span> <span class="comment">a</span> <span class="comment">new</span> <span class="comment">question</span><span class="comment">.</span>
<span class="comment"> * </span>
<span class="comment"> * </span><span class="ST0">@param</span> <span class="comment">question</span> <span class="comment">the</span> <span class="comment">new</span> <span class="comment">question</span>
<span class="comment">*/</span>
<span class="literal">public</span> <span class="literal">void</span> setQuestion(String question)
{
<span class="literal">this</span>.question = question;
}
}
</pre></body>
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>TrueFalseQuiz.java</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<style type="text/css">
<!--
body {color: #a9b7c6; background-color: #2b2b2b; font-family: monospace}
pre {color: #a9b7c6; background-color: #2b2b2b; font-family: monospace}
table {color: #888888; background-color: #313335; font-family: monospace}
.number {color: #6897bb}
.string {color: #6a8759}
.comment {color: #808080}
.whitespace {color: #505050}
.ST1 {color: #808080; font-family: monospace; font-weight: bold}
.ST0 {color: #287bde}
.literal {color: #cc7832}
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</head>
<body>
<table width="100%"><tr><td align="center">/home/caleb/ASDV-Java/Semester 2/Assignments/lab2_CalebFontenot/src/main/java/com/calebfontenot/lab5_calebfontenot/TrueFalseQuiz.java</td></tr></table>
<pre>
<span class="comment">/*</span>
<span class="comment"> * Click </span><span class="ST0">nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt</span><span class="comment"> to change this license</span>
<span class="comment"> * Click </span><span class="ST0">nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java</span><span class="comment"> to edit this template</span>
<span class="comment"> */</span>
<span class="literal">package</span> com.calebfontenot.lab5_calebfontenot;
<span class="literal">import</span> java.util.Date;
<span class="comment">/**</span>
<span class="comment"> *</span>
<span class="comment"> * </span><span class="ST1">@author</span> <span class="comment">caleb</span>
<span class="comment">*/</span>
<span class="literal">public</span> <span class="literal">class</span> TrueFalseQuiz {
<span class="literal">int</span> currentQuestion;
TrueFalseQuestion[] trueFalseQuestions;
<span class="literal">public</span> TrueFalseQuiz()
{
trueFalseQuestions = <span class="literal">new</span> TrueFalseQuestion[<span class="number">5</span>];
trueFalseQuestions[<span class="number">0</span>]
= <span class="literal">new</span> TrueFalseQuestion(<span class="string">&quot;</span><span class="string">The Pacific Ocean is larger than the Atlantic Ocean.</span><span class="string">&quot;</span>,
<span class="literal">true</span>, <span class="literal">new</span> Date());
trueFalseQuestions[<span class="number">1</span>]
= <span class="literal">new</span> TrueFalseQuestion(<span class="string">&quot;</span><span class="string">The Suez Canal connects the Red Sea and the Indian Ocean.</span><span class="string">&quot;</span>, <span class="literal">false</span>, <span class="literal">new</span> Date());
trueFalseQuestions[<span class="number">2</span>]
= <span class="literal">new</span> TrueFalseQuestion(<span class="string">&quot;</span><span class="string">The source of the nile River is in Egypt.</span><span class="string">&quot;</span>, <span class="literal">false</span>, <span class="literal">new</span> Date());
trueFalseQuestions[<span class="number">3</span>]
= <span class="literal">new</span> TrueFalseQuestion(<span class="string">&quot;</span><span class="string">Lake Baikal is the world</span><span class="literal">\&#39;</span><span class="string">s oldest and deepest freshwater lake.</span><span class="string">&quot;</span>, <span class="literal">true</span>, <span class="literal">new</span> Date());
trueFalseQuestions[<span class="number">4</span>]
= <span class="literal">new</span> TrueFalseQuestion(<span class="string">&quot;</span><span class="string">The Amazon River is the longest river in the Americas.</span><span class="string">&quot;</span>, <span class="literal">true</span>, <span class="literal">new</span> Date());
<span class="literal">this</span>.currentQuestion = <span class="number">0</span>;
}
<span class="literal">public</span> TrueFalseQuiz(String[] questions, <span class="literal">boolean</span>[] trueFalse)
{
<span class="comment">//&gt; Create an array of REFERENCES of size questions.length</span>
<span class="comment">//the references are initializesed to null</span>
trueFalseQuestions = <span class="literal">new</span> TrueFalseQuestion[questions.length];
<span class="comment">//&gt; assign to each reference of the array an object of type TrueFalseQuestion</span>
<span class="literal">for</span> (<span class="literal">int</span> i = <span class="number">0</span>, j = <span class="number">0</span>; i &lt; questions.length; ++i, ++j) {
trueFalseQuestions[i] = <span class="literal">new</span> TrueFalseQuestion(
questions[i],
trueFalse[j],
<span class="literal">new</span> Date());
<span class="comment">//&gt; set the index of the first question</span>
<span class="literal">this</span>.currentQuestion = <span class="number">0</span>;
}
}
<span class="comment">/**</span>
<span class="comment"> * </span><span class="comment">Gets</span> <span class="comment">the</span> <span class="comment">current</span> <span class="comment">question</span><span class="comment">.</span> <span class="comment">If</span> <span class="comment">the</span> <span class="comment">current</span> <span class="comment">question</span> <span class="comment">is</span> <span class="comment">the</span> <span class="comment">last</span> <span class="comment">last</span> <span class="comment">question</span> <span class="comment">in</span> <span class="comment">the</span> <span class="comment">quiz</span> <span class="comment">and</span> <span class="comment">we</span> <span class="comment">call</span> <span class="comment">this</span> <span class="comment">method</span> <span class="comment">the</span> <span class="comment">method</span> <span class="comment">will</span> <span class="comment">return</span> <span class="comment">the</span> <span class="comment">first</span> <span class="comment">question</span><span class="comment">.</span>
<span class="comment"> *</span>
<span class="comment"> * </span><span class="ST1">@return</span> <span class="comment">current</span> <span class="comment">question</span><span class="comment">;</span>
<span class="comment">*/</span>
<span class="literal">public</span> String nextQuestion()
{
<span class="literal">if</span> (++<span class="literal">this</span>.currentQuestion == <span class="literal">this</span>.trueFalseQuestions.length) {
<span class="literal">this</span>.currentQuestion = <span class="number">0</span>;
}
<span class="literal">this</span>.trueFalseQuestions[<span class="literal">this</span>.currentQuestion].setWhenLastUsed(<span class="literal">new</span> Date());
<span class="literal">return</span> <span class="literal">this</span>.trueFalseQuestions[<span class="literal">this</span>.currentQuestion].getQuestion();
}
<span class="comment">/**</span>
<span class="comment"> * </span><span class="comment">Returns</span> <span class="comment">true</span> <span class="comment">if</span> <span class="comment">the</span> <span class="comment">current</span> <span class="comment">question</span> <span class="comment">is</span> <span class="comment">true</span><span class="comment">.</span>
<span class="comment"> * </span><span class="ST1">@return</span> <span class="comment">true</span> <span class="comment">if</span> <span class="comment">the</span> <span class="comment">current</span> <span class="comment">question</span> <span class="comment">is</span> <span class="comment">true</span><span class="comment">, </span><span class="comment">false</span> <span class="comment">otherwise</span><span class="comment">.</span>
<span class="comment">*/</span>
<span class="literal">public</span> <span class="literal">boolean</span> isTrue() {
<span class="literal">return</span> <span class="literal">this</span>.trueFalseQuestions[<span class="literal">this</span>.currentQuestion].isIsTrue();
}
<span class="literal">public</span> <span class="literal">int</span> getCurrentQuestion()
{
<span class="literal">return</span> currentQuestion;
}
<span class="literal">public</span> <span class="literal">void</span> setCurrentQuestion(<span class="literal">int</span> currentQuestion)
{
<span class="literal">this</span>.currentQuestion = currentQuestion;
}
<span class="literal">public</span> TrueFalseQuestion[] getTrueFalseQuestions()
{
<span class="literal">return</span> trueFalseQuestions;
}
<span class="literal">public</span> <span class="literal">void</span> setTrueFalseQuestions(TrueFalseQuestion[] trueFalseQuestions)
{
<span class="literal">this</span>.trueFalseQuestions = trueFalseQuestions;
}
}
</pre></body>
</html>

2
Semester 2/Assignments/lab2_CalebFontenot/pom.xml
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@ -2,7 +2,7 @@
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.calebfontenot</groupId>
<artifactId>lab5_CalebFontenot</artifactId>
<artifactId>lab2_CalebFontenot</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<properties>

92
Semester 2/Assignments/lab2_CalebFontenot/src/main/java/com/calebfontenot/lab5_calebfontenot/QuadraticEquation.java Normal file
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@ -0,0 +1,92 @@
/*
* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
*/
package com.calebfontenot.lab5_calebfontenot;
/**
*
* @author caleb
*/
public class QuadraticEquation {
private double a;
private double b;
private double c;
public QuadraticEquation(double a, double b, double c)
{
this.a = a;
this.b = b;
this.c = c;
}
public double getDiscriminant()
{
return b * b - 4 * a * c;
}
public double getRoot1()
{
if (getDiscriminant() < 0) {
return -88888888;
}
return (b + Math.sqrt(b * b - 4 * a * c)) / (2 * a);
}
public double getRoot2()
{
if (getDiscriminant() < 0) {
return -88888888;
}
return (-b + Math.sqrt(b * b - 4 * a * c)) / (2 * a);
//return getDiscriminant() < 0 ? 0
// : ((-b) + Math.sqrt(Math.pow(b, 2) - 4 * a * c)) / (2 * a);
}
@Override
public String toString()
{
return "QuadraticEquation{" + "a=" + a + ", b=" + b + ", c=" + c + '}';
}
/**
* Get the value of b
*
* @return the value of b
*/
public double getB()
{
return b;
}
/**
* Get the value of c
*
* @return the value of c
*/
public double getC()
{
return c;
}
/**
* Get the value of a
*
* @return the value of a
*/
public double getA()
{
return a;
}
public static void main(String[] args)
{
QuadraticEquation eq1 = new QuadraticEquation(1, -4, 4);
System.out.println(eq1);
System.out.println(eq1.getRoot1());
System.out.println(eq1.getRoot2());
}
}

71
Semester 2/Assignments/lab2_CalebFontenot/src/main/java/com/calebfontenot/lab5_calebfontenot/TakeQuiz.java Normal file
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@ -0,0 +1,71 @@
/*
* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
*/
package com.calebfontenot.lab5_calebfontenot;
import java.util.Scanner;
/**
*
* @author caleb
*/
public class TakeQuiz {
public static void takeQuiz(TrueFalseQuiz quiz) {
//>Create a scanner for reading
Scanner scan = new Scanner(System.in);
String s = "";
//>do forever
do
{
System.out.println("q\\Q to quit");
System.out.println("n\\N next question");
s = scan.next();
if (s.compareToIgnoreCase("q") == 0)
{
break;
}
else if ("n".compareToIgnoreCase(s) == 0)
{
System.out.println("+++++++++++" + quiz.nextQuestion() + "+++++++++++");
String answer = "";
do
{
System.out.println("\tt\\T for true");
System.out.println("\tf\\F for false");
answer = scan.next();
if ("t".compareToIgnoreCase(answer) != 0 && "f".compareToIgnoreCase(answer) != 0)
{
System.out.println("\t\tf INVALID CHOICE");
}
}
while ("t".compareToIgnoreCase(answer) != 0 && "f".compareToIgnoreCase(answer) != 0);
boolean convertAnswerToBoolean = "t".compareToIgnoreCase(answer) == 0;
System.out.println(quiz.isTrue() == convertAnswerToBoolean
? "\t\t---------correct"
: "\t\t---------incorrect");
}
else
{
System.out.println("Invalid choice. Try again");
}
}
while (true);
}
public static void main(String[] args)
{
TrueFalseQuiz quiz = new TrueFalseQuiz();
TakeQuiz.takeQuiz(quiz);
for (int i = 0; i < quiz.getTrueFalseQuestions().length; ++i) {
System.out.println(quiz.getTrueFalseQuestions()[i].getWhenLastUsed());
}
}
}

96
Semester 2/Assignments/lab2_CalebFontenot/src/main/java/com/calebfontenot/lab5_calebfontenot/TrueFalseQuiz.java
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@ -11,43 +11,89 @@ import java.util.Date;
* @author caleb
*/
public class TrueFalseQuiz {
int currentQuestion;
TrueFalseQuestion[] trueFalseQuestions;
public TrueFalseQuiz() {
public TrueFalseQuiz()
{
trueFalseQuestions = new TrueFalseQuestion[5];
trueFalseQuestions[0] =
new TrueFalseQuestion("The Pacific Ocean is larger than the Atlantic Ocean.",
true, new Date());
trueFalseQuestions[1] =
new TrueFalseQuestion("The Suez Canal connects the Red Sea and the Indian Ocean.", false, new Date());
trueFalseQuestions[2] =
new TrueFalseQuestion("The source of the nile River is in Egypt.", false, new Date());
trueFalseQuestions[3] =
new TrueFalseQuestion("Lake Baikal is the world\'s oldest and deepest freshwater lake.", true, new Date());
trueFalseQuestions[4] =
new TrueFalseQuestion("The Amazon River is the longest river in the Americas.", true, new Date());
trueFalseQuestions[0]
= new TrueFalseQuestion("The Pacific Ocean is larger than the Atlantic Ocean.",
true, new Date());
trueFalseQuestions[1]
= new TrueFalseQuestion("The Suez Canal connects the Red Sea and the Indian Ocean.", false, new Date());
trueFalseQuestions[2]
= new TrueFalseQuestion("The source of the nile River is in Egypt.", false, new Date());
trueFalseQuestions[3]
= new TrueFalseQuestion("Lake Baikal is the world\'s oldest and deepest freshwater lake.", true, new Date());
trueFalseQuestions[4]
= new TrueFalseQuestion("The Amazon River is the longest river in the Americas.", true, new Date());
this.currentQuestion = 0;
}
public TrueFalseQuiz(String[] questions, boolean[] trueFalse) {
public TrueFalseQuiz(String[] questions, boolean[] trueFalse)
{
//> Create an array of REFERENCES of size questions.length
//the references are initializesed to null
trueFalseQuestions = new TrueFalseQuestion[questions.length];
//> assign to each reference of the array an object of type TrueFalseQuestion
for(int i = 0, j = 0; i < questions.length; ++i,++j) {
for (int i = 0, j = 0; i < questions.length; ++i, ++j) {
trueFalseQuestions[i] = new TrueFalseQuestion(
questions[i],
trueFalse[j],
new Date());
questions[i],
trueFalse[j],
new Date());
//> set the index of the first question
this.currentQuestion = 0;
}
}
/**
* Gets the current question. If the current question is the last last question in the quiz and we call this method the method will return the first question.
*
* @return current question;
*/
public String nextQuestion()
{
if (++this.currentQuestion == this.trueFalseQuestions.length) {
this.currentQuestion = 0;
}
this.trueFalseQuestions[this.currentQuestion].setWhenLastUsed(new Date());
return this.trueFalseQuestions[this.currentQuestion].getQuestion();
}
/**
* Returns true if the current question is true.
* @return true if the current question is true, false otherwise.
*/
public boolean isTrue() {
return this.trueFalseQuestions[this.currentQuestion].isIsTrue();
}
public int getCurrentQuestion()
{
return currentQuestion;
}
public void setCurrentQuestion(int currentQuestion)
{
this.currentQuestion = currentQuestion;
}
public TrueFalseQuestion[] getTrueFalseQuestions()
{
return trueFalseQuestions;
}
public void setTrueFalseQuestions(TrueFalseQuestion[] trueFalseQuestions)
{
this.trueFalseQuestions = trueFalseQuestions;
}
}

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