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    <p>This is your code, corrected as I interpreted what you wanted to perform.</p> <pre><code>#include&lt;iostream&gt; #include&lt;fstream&gt; #include&lt;string&gt; using namespace std; class operations { public:void checkout() { cout &lt;&lt; "Check out here!!"; } }; int main() { string item; int choice; operations op; cout &lt;&lt; "What do you want to do? " &lt;&lt; endl; cout &lt;&lt; "Press 1 for checking out " &lt;&lt; endl; cout &lt;&lt; "Press 2 for stocking " &lt;&lt; endl; cout &lt;&lt; "Press 3 looking at recipts " &lt;&lt; endl; cin &gt;&gt; choice; cout &lt;&lt; choice; if(choice == 1) { op.checkout(); } return 0; } </code></pre> <p>First, note that semicolons are needed after class declarations, and not needed after method declarations</p> <p>Second, note that <code>void checkout()</code> in your code would not call the method that you defined in your class, but will instead declare a new method that will simply perform nothing. To call the right <code>void checkout()</code> you have to instatiate an object of type <code>operations</code> and then call its method with <code>op.checkout()</code></p> <p>Last, always declare <code>int main()</code> and place <code>return 0</code> if the executions flow arrives to the end of your program correctly.</p> <p>As a side note, I would probably not use a class in your program, but simply implement the methods correspondent to the user's choice before the <code>main()</code> implementation</p> <pre><code>void checkout() { cout &lt;&lt; "Check out here!!"; } </code></pre> <p>so that you can call them simply with</p> <pre><code>checkout() </code></pre>
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    1. COThere was no need to add `return 0;`.
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      1. USLightness Races in Orbit
 

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