Which design patterns benefit from the multiple inheritances?

1.	Which design patterns benefit from the multiple inheritances?
A.	Code pattern
B.	Glue pattern
C.	Adapter and observer pattern
D.	All of above
E.	None of these
Answer» D. All of above

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What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> using namespace std; class BaseClass { public: virtual void print() const = 0; }; class DerivedClassOne : public BaseClass { public: void print() const { cout << "Derived class One n"; } }; class DerivedClassTwo : public BaseClass { public: void print() const { cout << "Derived class Two n"; } }; class MultipleClass : public DerivedClassOne, public DerivedClassTwo { public: void print() const { DerivedClassTwo :: print(); } }; int main() { int i; MultipleClass both; DerivedClassOne one; DerivedClassTwo two; BaseClass *array[ 3 ]; array[ 0 ] = &both; array[ 1 ] = &one; array[ 2 ] = &two; array[ i ] -> print(); return 0; } </pre>
What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> using namespace std; struct Student1 { int num; }; struct Student2 { int* val; }; struct Student3 : public Student1, public Student2 { }; int main() { Student3* ptr = new Student3; ptr->val = 0; cout << "Above structures are Inherited..."; return 0; } </pre>
What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> using namespace std; class StudentClass { public: int RollNo , mark1 , mark2 ; void get() { RollNo = 25, mark1 = 15, mark2 = 40; } }; class sportsClass { public: int sortMarks; void getsm() { sortMarks = 20; } }; class statementClass:public StudentClass,public sportsClass { int Total,average; public: void display() { Total = (mark1 + mark2 + sortMarks); average = Total / 3; cout << Total << " "; cout << average; } }; int main() { statementClass object; object.get(); object.getsm(); object.display(); } </iostream></pre>
What is meant by multiple inheritance?
What are the things are inherited from the base class?
Which design patterns benefit from the multiple inheritances?

Which design patterns benefit from the multiple inheritances?

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