HARMAN Interview Questions, Process, and Tips

Kotlin scope functions are functions that allow concise code block execution on an object.

• Kotlin scope functions include let, run, with, apply, and also.

• They are used to simplify code and avoid repetitive variable references.

• For example, 'with' can be used to execute multiple operations on an object without repeating its name.

• Similarly, 'apply' can be used to initialize an object's properties without repeating its name...read more

Copy constructor creates a new object by copying an existing object.

• Copy constructor is used to create a new object by copying an existing object.

• Syntax: ClassName(const ClassName& obj)

• The const keyword ensures that the original object is not modified.

• The & symbol is used to pass the object by reference, which is more efficient than passing by value.

• Copy constructor is automatically called when a new object is created

Abstraction and Encapsulation are two major pillars of OOPS.

• Abstraction is the process of hiding complex implementation details and showing only the necessary information to the user.

• Encapsulation is the process of wrapping data and methods into a single unit and restricting access to the data from outside the unit.

• Abstraction is achieved through abstract classes and interfaces.

• Encapsulation is achieved through access ...read more

dynamic_cast is used in C++ to perform safe downcasting of polymorphic types.

• dynamic_cast is used to convert a pointer/reference of a base class to a pointer/reference of a derived class.

• It is used when we want to access a derived class member function or variable using a base class pointer/reference.

• If the conversion is not possible, dynamic_cast returns a null pointer for pointers or throws a bad_cast exception for r

I have worked on both Linux and Windows platforms with various system configurations.

• Proficient in Linux command line interface and shell scripting

• Experience in Windows Server administration and Active Directory management

• Familiarity with virtualization technologies such as VMware and VirtualBox

• Knowledge of system configuration management tools like Ansible and Puppet

Q_Object Macro is a Qt macro used to declare a class as a QObject.

• Q_Object Macro is used to enable signals and slots mechanism in a class.

• It is used to declare a class as a QObject and to inherit from QObject.

• It is used to enable the use of Qt's meta-object system in a class.

• It is used to enable dynamic properties and object names in a class.

Connect statement is used to connect signals and slots in Qt. MOC compiler generates meta-object code for Qt classes.

• Connect statement connects a signal to a slot or a signal to another signal.

• Parameters of connect statement include sender object, signal name, receiver object, slot name, and optional connection type.

• MOC compiler generates meta-object code for Qt classes which enables features like signals and slots, in