Initial commit

c++/Others/A simple example of inheritance..cpp

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+A simple example of inheritance.
+#include <iostream>
+using namespace std;
+
+class BaseClass {
+  int i;
+public:
+  void setInt(int n);
+  int getInt();
+};
+
+class DerivedClass : public BaseClass {
+  int j;
+public:
+  void setJ(int n);
+  int mul();
+};
+
+void BaseClass::setInt(int n)
+{
+  i = n;
+}
+
+int BaseClass::getInt()
+{
+  return i;
+}
+
+void DerivedClass::setJ(int n)
+{
+  j = n;
+}
+
+int DerivedClass::mul()
+{
+  return j * getInt();
+}
+
+int main()
+{
+  DerivedClass ob;
+
+  ob.setInt(10);        // load i in BaseClass
+  ob.setJ(4);          // load j in DerivedClass
+
+  cout << ob.mul();     // displays 40
+
+  return 0;
+}