Initial commit

c++/Others/If - Else example.cpp

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+If - Else example
+
+#include <iostream.h>
+#include <math.h> 
+int main()
+{
+double radius;
+//get user input
+cout<<"Please enter the radius : ";
+cin>>radius;
+//act on user input
+if(radius < 0.0)
+cout<<"Cannot have a negative radius"<<endl;
+else
+cout<<"The area of the circle is "<<3.1416 * pow(radius,2)<<endl;
+
+return 0;
+}