Which of the following is correct about templates?

1.	Which of the following is correct about templates?
A.	It is a type of compile time polymorphism
B.	It allows the programmer to write one code for all data types
C.	Helps in generic programming
D.	All of the mentioned
Answer» E.

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What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> using namespace std; template<typename type> class Test { public: virtual type Function(type num1) { return num1 * 2; } }; int main() { Test<int> num1; cout << num1.Function(150) << endl; return 0; } </pre>
What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> using namespace std; template <class type> class Sample { public: Sample() { }; ~Sample() { }; type FunA(type num1) { return num1; } type FunB(type num2) { return num2; } }; int main() { Sample<int> num1; Sample<double> num2; cout << num1.FunA(250) << " "; cout << num2.FunB(5.225); return 0; } </pre>
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What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> using namespace std; template <class T> inline T square(T n1) { T Output; Output = n1 * n1; return Output; }; template <> string square<string>(string Str) { return (Str + Str); }; int main() { int k = 4, kk; string bb("B"); kk = square<int>(k); cout << k << ": " << kk; cout << square<string>(bb) << ":" << endl; } </pre>
What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> using namespace std; template<class T = float, int k = 5> class N { public: N(); int value; }; template<> class N<> { public: N(); }; template<> class N<double, 10> { public: N(); }; template<class T, int k> N<T, k>::N() : value(k) { cout << value; } N<>::N() { cout << " Out of "; } N<double, 10>::N() { cout << "10" << endl; } int main() { N<int, 8> x; N<> y; N<double, 10> z; } </pre>
What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> #include <string> #include <cstring> using namespace std; template <class type> type Maximum(const type value1, const type value2) { cout << "No Specialization"; return value1 < value2 ? value2 : value1; } template <> const char *Maximum(const char *value1, const char *value2) { return (strcmp(value1, value2) < 0) ? value2 : value1; } int main() { string S1 = "class", S2 = "template"; const char *value3 = "Interveiw"; const char *value4 = "Mania"; const char *q = Maximum(value3, value4); cout << q << endl; return 0; } </pre>
What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> using namespace std; template<typename type> type Maximum(type num1, type num2) { return num1 > num2 ? num1:num2; } int main() { int Res; Res = Maximum(150, 250); cout << Res << endl; return 0; } </pre>
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What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> using namespace std; class BaseClass { public: BaseClass( ) { cout << "I "; } ~BaseClass ( ) { cout << " Mania"; } }; class DerivedClass : public BaseClass { public: DerivedClass ( ) { cout << "Love "; } ~DerivedClass ( ) { cout << "Interview"; } }; int main( ) { DerivedClass x; } </pre>

Which of the following is correct about templates?

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