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+<h1 id="this-is-my-first-post">This is my first post</h1>
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+#################################################
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+# file to edit: _notebooks/2022-10-20-classes.ipynb
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+<div class="container" id="notebook-container">
+
+<div class="cell border-box-sizing text_cell rendered"><div class="inner_cell">
+<div class="text_cell_render border-box-sizing rendered_html">
+<h1 id="Classes">Classes<a class="anchor-link" href="#Classes"> </a></h1><h2 id="Why-do-we-need-classes">Why do we need classes<a class="anchor-link" href="#Why-do-we-need-classes"> </a></h2><ul>
+<li>essential part of OOP
+models real world objects in code</li>
+</ul>
+<h2 id="Anatomy-of-a-java-Class">Anatomy of a java Class<a class="anchor-link" href="#Anatomy-of-a-java-Class"> </a></h2><ul>
+<li>object:<ul>
+<li>state attributes, behavior, </li>
+<li>instance of a class</li>
+<li>represented by an instance in the program</li>
+</ul>
+</li>
+<li>class<ul>
+<li>defines an abstract data tye</li>
+<li>string variables</li>
+<li>instance variables: attributes, behaviors</li>
+<li>data for objects</li>
+</ul>
+</li>
+</ul>
+<h2 id="Methods-and-Constructors">Methods and Constructors<a class="anchor-link" href="#Methods-and-Constructors"> </a></h2><ul>
+<li>methods are behaviors or actions that apply to the objects</li>
+<li>constructors create the object</li>
+<li>main method tests class and instance variables</li>
+</ul>
+<h2 id="Constructors">Constructors<a class="anchor-link" href="#Constructors"> </a></h2><ul>
+<li>special method for instantiation<ul>
+<li>sets initial values</li>
+</ul>
+</li>
+<li>default constructor</li>
+<li>can have multiple constructors per class</li>
+</ul>
+<h2 id="Documentation-with-Comments">Documentation with Comments<a class="anchor-link" href="#Documentation-with-Comments"> </a></h2><h3 id="Commenting">Commenting<a class="anchor-link" href="#Commenting"> </a></h3><ul>
+<li>comment with // for a single line</li>
+<li>multiple line or documentation comment</li>
+<li>helps explain code as you go</li>
+</ul>
+<h2 id="Accessor-and-Mutator-Methods">Accessor and Mutator Methods<a class="anchor-link" href="#Accessor-and-Mutator-Methods"> </a></h2><h3 id="Accessor-Methods">Accessor Methods<a class="anchor-link" href="#Accessor-Methods"> </a></h3><ul>
+<li>get of methods or getters</li>
+<li>allow you to get values or variable</li>
+<li>non void methods</li>
+<li>return a value of specified data type</li>
+</ul>
+<h3 id="Mutator-Methods">Mutator Methods<a class="anchor-link" href="#Mutator-Methods"> </a></h3><ul>
+<li>set of methods or setters</li>
+<li>void methods won't return values</li>
+</ul>
+<h2 id="Writing-Methods">Writing Methods<a class="anchor-link" href="#Writing-Methods"> </a></h2><ul>
+<li>method definition, method signature, method body</li>
+<li>camelCase </li>
+<li>Object.method()
+### Method Return Types</li>
+<li>string, int, bool, any object type, void (return no value)</li>
+</ul>
+<h2 id="Keywords-in-Java">Keywords in Java<a class="anchor-link" href="#Keywords-in-Java"> </a></h2><h3 id="Static-Modifier">Static Modifier<a class="anchor-link" href="#Static-Modifier"> </a></h3><ul>
+<li>key word usually used after access modifiers</li>
+<li>denotes as belonging to a class</li>
+<li>cannot reference static variables
+universally shared variables and methods among objects
+### This</li>
+<li>refers to the constructor that is being called in</li>
+<li>eliminated confusion between attribute and parameters
+### Access Modifiers</li>
+<li>restricts scope of classes variables and function</li>
+<li>used for encapsulation</li>
+<li>prevents misuse of data and methods</li>
+</ul>
+<h2 id="Scope-and-Access">Scope and Access<a class="anchor-link" href="#Scope-and-Access"> </a></h2><ul>
+<li>where a variable can be accessed or used</li>
+<li>declaration of variable</li>
+<li>3 levels<ul>
+<li>class level: instance var</li>
+<li>method level: local, parameter var</li>
+<li>block level: loops, if/else</li>
+</ul>
+</li>
+</ul>
+<p><a href="https://dontran15.github.io/CSAFastPages/college%20board/week%209/2022/10/18/java-test.html">Code Examples</a></p>
+<h2 id="Homework">Homework<a class="anchor-link" href="#Homework"> </a></h2><ul>
+<li>2021 FRQ 1a 3a</li>
+</ul>
+
+</div>
+</div>
+</div>
+
+
+<div class="cell border-box-sizing code_cell rendered">
+<div class="input">
+
+<div class="inner_cell">
+    <div class="input_area">
+<div class=" highlight hl-java"><pre><span></span><span class="kd">public</span> <span class="kt">int</span> <span class="nf">scoreGuess</span> <span class="p">(</span><span class="n">String</span> <span class="n">guess</span><span class="p">)</span>
+<span class="kt">int</span> <span class="n">count</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
+<span class="k">for</span> <span class="p">(</span><span class="kt">int</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="n">i</span> <span class="o">&lt;=</span> <span class="n">secret</span><span class="p">.</span><span class="na">length</span><span class="p">()</span> <span class="o">-</span> <span class="n">guess</span><span class="p">.</span><span class="na">length</span><span class="p">();</span> <span class="n">i</span><span class="o">++</span><span class="p">){</span>
+    <span class="k">if</span> <span class="p">(</span><span class="n">secret</span><span class="p">.</span><span class="na">substring</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">i</span> <span class="o">+</span> <span class="n">guess</span><span class="p">.</span><span class="na">length</span><span class="p">()).</span><span class="na">equals</span> <span class="p">(</span><span class="n">guess</span><span class="p">)){</span>
+        <span class="n">count</span><span class="o">++</span><span class="p">;</span>
+    <span class="p">}</span>
+<span class="p">}</span>
+<span class="k">return</span> <span class="n">count</span> <span class="o">*</span> <span class="n">guess</span><span class="p">.</span><span class="na">length</span><span class="p">()</span> <span class="o">*</span> <span class="n">guess</span><span class="p">.</span><span class="na">length</span><span class="p">();</span>
+
+<span class="kd">public</span> <span class="kt">void</span> <span class="nf">addMembers</span><span class="p">(</span><span class="n">String</span><span class="o">[]</span> <span class="n">names</span><span class="p">,</span> <span class="kt">int</span> <span class="n">gradYear</span> <span class="p">){</span>
+
+<span class="k">for</span><span class="p">(</span> <span class="n">String</span> <span class="n">n</span> <span class="p">:</span> <span class="n">names</span> <span class="p">){</span>
+    <span class="n">memberList</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="k">new</span> <span class="n">MemberInfo</span><span class="p">(</span> <span class="n">n</span><span class="p">,</span> <span class="n">gradYear</span><span class="p">,</span> <span class="kc">true</span><span class="p">)</span> <span class="p">);</span>
+<span class="p">}</span>
+<span class="p">}</span>
+</pre></div>
+
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