124 lines
7.7 KiB
HTML
124 lines
7.7 KiB
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<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>
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<pre>
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<span class="comment">/*</span>
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<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>
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<span class="comment"> * Click </span><span class="ST0">nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java</span><span class="comment"> to edit this template</span>
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<span class="comment"> */</span>
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<span class="literal">package</span> com.calebfontenot.lab5_calebfontenot;
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<span class="comment">/**</span>
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<span class="comment"> *</span>
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<span class="comment"> * </span><span class="ST1">@author</span> <span class="comment">caleb</span>
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<span class="comment">*/</span>
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<span class="literal">public</span> <span class="literal">class</span> QuadraticEquation {
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<span class="literal">private</span> <span class="literal">double</span> <span class="ST2">a</span>;
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<span class="literal">private</span> <span class="literal">double</span> <span class="ST2">b</span>;
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<span class="literal">private</span> <span class="literal">double</span> <span class="ST2">c</span>;
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<span class="literal">public</span> QuadraticEquation(<span class="literal">double</span> a, <span class="literal">double</span> b, <span class="literal">double</span> c)
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{
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<span class="literal">this</span>.<span class="ST2">a</span> = a;
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<span class="literal">this</span>.<span class="ST2">b</span> = b;
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<span class="literal">this</span>.<span class="ST2">c</span> = c;
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}
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<span class="literal">public</span> <span class="literal">double</span> <span class="ST3">getDiscriminant</span>()
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{
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<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>;
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}
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<span class="literal">public</span> <span class="literal">double</span> <span class="ST3">getRoot1</span>()
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{
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<span class="literal">if</span> (getDiscriminant() < <span class="number">0</span>) {
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<span class="literal">return</span> -<span class="number">88888888</span>;
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}
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<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>);
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}
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<span class="literal">public</span> <span class="literal">double</span> <span class="ST3">getRoot2</span>()
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{
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<span class="literal">if</span> (getDiscriminant() < <span class="number">0</span>) {
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<span class="literal">return</span> -<span class="number">88888888</span>;
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}
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<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>);
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<span class="comment">//return getDiscriminant() < 0 ? 0</span>
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<span class="comment">// : ((-b) + Math.sqrt(Math.pow(b, 2) - 4 * a * c)) / (2 * a);</span>
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}
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@Override
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<span class="literal">public</span> String <span class="ST3">toString</span>()
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{
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<span class="literal">return</span> <span class="string">"</span><span class="string">QuadraticEquation{</span><span class="string">"</span> + <span class="string">"</span><span class="string">a=</span><span class="string">"</span> + <span class="ST2">a</span> + <span class="string">"</span><span class="string">, b=</span><span class="string">"</span> + <span class="ST2">b</span> + <span class="string">"</span><span class="string">, c=</span><span class="string">"</span> + <span class="ST2">c</span> + <span class="string">'</span><span class="string">}</span><span class="string">'</span>;
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}
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<span class="comment">/**</span>
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<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>
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<span class="comment"> *</span>
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<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>
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<span class="comment">*/</span>
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<span class="literal">public</span> <span class="literal">double</span> <span class="ST3">getB</span>()
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{
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<span class="literal">return</span> <span class="ST2">b</span>;
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}
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<span class="comment">/**</span>
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<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>
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<span class="comment"> *</span>
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<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>
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<span class="comment">*/</span>
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<span class="literal">public</span> <span class="literal">double</span> <span class="ST3">getC</span>()
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{
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<span class="literal">return</span> <span class="ST2">c</span>;
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}
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<span class="comment">/**</span>
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<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>
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<span class="comment"> *</span>
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<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>
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<span class="comment">*/</span>
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<span class="literal">public</span> <span class="literal">double</span> <span class="ST3">getA</span>()
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{
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<span class="literal">return</span> <span class="ST2">a</span>;
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}
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<span class="literal">public</span> <span class="literal">static</span> <span class="literal">void</span> <span class="ST5">main</span>(String[] args)
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{
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QuadraticEquation eq1 = <span class="literal">new</span> QuadraticEquation(<span class="number">1</span>, -<span class="number">4</span>, <span class="number">4</span>);
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System.<span class="ST6">out</span>.println(eq1);
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System.<span class="ST6">out</span>.println(eq1.getRoot1());
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System.<span class="ST6">out</span>.println(eq1.getRoot2());
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}
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}
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</pre></body>
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</html>
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