c$++$

$1.$ When should templates be used to implement functions? When should templates be used to implement classes?

$2.$ When you define a class, and do not provide any constructor, then a default constructor will be provided and used automatically. Observe the following class $-$ add necessary header files, compile and run the code, add a main function with a call to the operator $<<$ and answer the question based on your observations. $(10$ points$)$

class YourClassName

$\{$

public:

friend ostream & operator$<<($ostream & outs, const YourClassName & o$)$

$\{$

outs $<<$ o$.$value $<<$ endl;

outs $<<$ o$.$dvalue $<<$ endl;

for $($int i$=0$; i$<10$; i$++)$

outs $<<"$a$["<$