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POcreate class via input from cin fetched with operator>>
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2013-10-09T23:54:50.987
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2013-10-10T00:08:43.803
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<p>My assignment I to create the following classes with the following data members / member functions.</p> <ul> <li>Computer <ul> <li>RAM (in GB).</li> <li>Processor Speed (in GHz).</li> <li># of Cores</li> <li>Hard Drive Storage Size (in GB).</li> <li>Print (Virtual Function)</li> </ul></li> <li>Desktop (inherits from Computer) <ul> <li>hasMonitor</li> <li>monitorSize (in Inches)</li> </ul></li> <li>Laptop (inherits from Computer) <ul> <li>screenSize</li> </ul></li> <li>Cluster (inherits from Computer)</li> <li>Number of computers</li> </ul> <p>I should add a virtual print function and take input for each desktop/laptop I have. Can someone help me with figuring out why its not taking any input for it?</p> <pre><code>#include <iostream> using namespace std; class computers{ public: int ram; double processor_speed; int num_cores; int hd_storage; computers(); }; computers::computers() { ram=0; processor_speed=0; num_cores=0; hd_storage=0; } class desktop: public computers{ public: bool hasMonitor; double monitor_size; desktop(); friend istream& operator>>(istream& isObject, desktop& desk1); }; desktop::desktop() { hasMonitor=true; monitor_size=0; } istream& operator>>(istream& isObject, desktop& desk1) { isObject>>desk1.hasMonitor; isObject>>desk1.monitor_size; isObject>>desk1.ram; isObject>>desk1.processor_speed; isObject>>desk1.hd_storage; isObject>>desk1.num_cores; if(desk1.hasMonitor==0) desk1.hasMonitor=false; return isObject; } class laptop:public computers{ public: int screen_size; laptop(); friend istream& operator>>(istream& isObject,laptop& lap1); }; laptop::laptop() { screen_size=0; } istream& operator>> (istream& isObject, laptop& lap1) { isObject>> lap1.ram; isObject>> lap1.processor_speed; isObject>> lap1.hd_storage; isObject>> lap1.num_cores; isObject>> lap1.screen_size; return isObject; } class cluster:public computers{ public: int num_of_comps; friend istream& operator>>(istream& isObject,cluster& clust1); cluster(); }; cluster::cluster() { num_of_comps=0; } istream& operator>>(istream& isObject,cluster& clust1) { isObject >> clust1.ram; isObject >> clust1.processor_speed; isObject >> clust1.hd_storage; isObject >> clust1.num_cores; isObject >> clust1.num_of_comps; return isObject; } cluster operator+(const computers& comp1, const computers& comp2) { cluster mrcluster; mrcluster.ram = comp1.ram+comp2.ram; mrcluster.processor_speed = comp1.processor_speed+comp2.processor_speed; mrcluster.num_cores = comp1.num_cores+comp2.num_cores; mrcluster.hd_storage = comp1.hd_storage+comp2.hd_storage; return mrcluster; } int main() { laptop laptop1; desktop desktop1; desktop desktop2; cluster mycluster = laptop1+desktop1+desktop2; system("pause"); } </code></pre>
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<c++><oop><input><cin>
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create class via input from cin fetched with operator>>
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