Which among the following is safe?

OBJECT ORIENTED PROGRAMMING - OVERLOADING MCQ

• What are default arguments?
• Which is correct condition for the default arguments?
• If a member function have to be made both zero argument and parameterized constructor, which among the following can be the best option?
• Which among the following function can be called without arguments?
• If a function have all the default arguments but still some values are passed to the function then ______________
• What function will be called with the independent syntax “test(5,6,7);”?
• Which among the following is wrong call to the function void test(int x, int y=0, int z=0)?
• Default arguments are _________________________
• Which among the following is false for default arguments?
• The non-template functions can be added with default arguments to already declared functions ____________________
• The using declaration __________
• The names given to the default arguments are only looked up and ________________. And are bound during declaration
• The default argument get bound during declaration ________________
• The virtual function overrides ____________
• Which among the following is true for constructors overloading?
• If a constructors should be capable of creating objects without argument and with arguments, which is a good alternative for this purpose?
• The Constructors with all the default arguments are similar as default constructors. State true or false
• Which among the following is true?
• Which among the following can be used in place of default constructor?
• Can a class have more than one function with all the default arguments?
• Which is the correct syntax for using default arguments with the constructor?
• How many parameters must be passed if only the following prototype is given to a constructor?
• If the constructors are overloaded by using the default arguments, which problem may arise?
• Which among the following is true ?
• Which constructor among the following will be called if a call is made like className(5,’a’);?
• Which constructor definition will produce a compile time error?
• If there is a constructor with all the default arguments and arguments are not passed then _________________
• Which is the correct statement for default constructors?
• Which is a good alternative instead of having one zero argument constructor and one single argument constructor with default argument?
• What is upcasting?
• Which among the following is true for upcasting in inheritance?
• Which among the following is safe?
• Which among the following is best situation to use upcasting?
• Which property is shown most when upcasting is used?
• Upcasting and downcasting objects is same as casting primitive types
• Which casting among the following is allowed for the code given below?
• If multiple inheritance is implemented, which upcasting will be correct?
• If class C inherits class B and class B inherits class A ________________
• Upcasting is _____________________ without an explicit type cast
• Which concept is needed because of implicit type casting use?
• When are the pointer types known for upcasting the objects?
• When are the object type known for upcasting the objects?
• If two classes are defined “Parent” and “Child” then which is the correct type upcast syntax in C++?
• What is downcasting?
• Which among the following is a mandatory condition for downcasting?
• Downcasting is _______________________
• Downcasting ____________________
• What should be used for safe downcast?
• What does dynamic_cast return after successful type casting?
• If dynamic_cast fails, which value is returned?
• Which is the proper syntax of dynamic_cast?
• Which is the exception handler for the exceptions of downcasting?
• How to prevent the ClassCastExceptions?
• Java supports direct downcasting
• Which way the downcasting is possible with respect to inheritance?
• What happens when downcasting is done but not explicitly defined in syntax?
• When is downcating used?
• Why is downcasting possible in any language?
• How many types of member functions are possible in general?

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