Up2Datez Interview Questions and Answers

Constructor is used to initialize an object when it is created, while destructor is used to clean up resources when an object is destroyed.

• Constructor is called when an object is created, while destructor is called when an object is destroyed.

• Constructor initializes the object's state and allocates memory, while destructor cleans up resources and deallocates memory.

• Example: In C++, constructor is defined using the class name and has the same name as the class, while destructo...read more

The proper sequence of the given sentence is RQPS.

• The sentence starts with the event of hearing the hue and cry at midnight (R)

• The person did not know what to do (Q)

• He was nervous (P)

• The sentence ends with the person figuring out what to do (S)

Wrapper class is a class that wraps around a primitive data type and provides additional functionality.

• Wrapper classes in Python include int, float, str, etc.

• They allow primitive data types to be used as objects.

• Example: int is a wrapper class for integer data type.

Programming is the process of designing and building instructions for a computer to execute.

• Programming involves writing code using programming languages like Java, Python, C++, etc.

• It requires logical thinking and problem-solving skills to create algorithms and solve complex problems.

• Programmers use tools like IDEs, compilers, and debuggers to write, test, and debug code.

• Examples of programming tasks include developing software applications, websites, games, and automation s...read more

Decorators are functions that modify the behavior of other functions or methods.

• Decorators are used to add functionality to existing functions without modifying their code.

• They are defined using the @decorator syntax in Python.

• Decorators can be used for logging, timing, authentication, etc.

• Example: @staticmethod decorator in Python marks a method as static.

• Example: @property decorator in Python allows defining a method as a property.