IT/Software Jobs Interview Preparation Source
Answer: setDaemon(boolean value) – Set it to “true” to make thread as a daemon thread. Notes: It is mandatory to call this method before thread start() method. All threads created by a programmers are user threads/normal threads unless you marked it as a daemon thread using the method setDaemon(boolean value). Example:
Answer: No, destructor of a class in C++ cannot be overloaded. Only one empty destructor per class should be there. It must have a void parameter list. Destructor in C++ neither takes any parameters nor does it return anything. So, multiple destructor with different signatures are not possible in a class. Hence, overloading is also…
Answer includes how to prevent object copy in C++ of a class with a simple example using copy constructor and assignment operator with C++ program example. Answer: There is a simple trick that we can apply in C++ class that is by making copy constructor or assignment operator private, we can prevent copy or assignment…
Answer: One of the solutions is, create a separate base class, say “NonCopyable” and make copy constructor and assignment operator declaration private leaving constructor and destructor public or having default constructor. When we create object of existing class it will first call the constructor of base(NonCopyalbe) class then existing class. Same will happen for copy…