Question { 1380 }

What is the difference between `deepcopy` and `shallow copy`?

Answer

A deep copy duplicates the actual content, while a shallow copy duplicates only references.

Question { 1380 }

What is the difference between `deepcopy` and `shallow copy`?

Answer

• Shallow copy: Copies only the pointer, not the actual data.
• Deep copy: Creates a new memory allocation and copies the data.

Question { 834 }

What are list comprehensions in Python?

Answer

List comprehensions provide a concise way to create lists. Example: `[x**2 for x in range(5)]` generates `[0, 1, 4, 9, 16]`.

Question { 600 }

Explain the difference between `@staticmethod` and `@classmethod`.

Answer

`@staticmethod` is used for methods that don’t require access to the instance (`self`) or class (`cls`). `@classmethod` is used when a method needs access to the class (`cls`), but not the instance (`self`).

Question { 654 }

What is the difference between `__str__` and `__repr__` methods in Python?

Answer

`__str__` is used for creating a user-friendly string representation of an object. `__repr__` is used for creating a detailed string representation of an object, intended for debugging.

Question { 694 }

What is the Global Interpreter Lock (GIL) in Python?

Answer

The GIL is a mechanism that prevents multiple native threads from executing Python bytecodes at once. It can affect the performance of multi-threaded programs.

Question { 727 }

What is the difference between `del` and `remove()` in Python?

Answer

del` is used to delete a variable or an item at a specific index in a list. `remove()` is used to remove the first occurrence of a value from a list.

Question { 701 }

What are args and kwargs in Python?

Answer

`args` allows passing a variable number of non-keyword arguments, while `kwargs` allows passing a variable number of keyword arguments.

Question { 655 }

Explain the concept of closures in Python.

Answer

A closure occurs when a function is defined inside another function and references variables from the outer function's scope. It allows the inner function to retain access to variables from the outer function even after the outer function has finished executing

Question { 705 }

What is metaprogramming in Python?

Answer

Metaprogramming refers to the ability of Python to manipulate its own structure at runtime. It involves working with classes, functions, or objects dynamically using techniques like class decorators, metaclasses, and `exec()`.

Question { 651 }

1 What is a Data Structure?

Answer

A data structure is a type of storage format that specifies how information is arranged, saved, and worked with.
Trees, graphs, and arrays are a few well-known data structures.

Question { 814 }

What is the OOPs concept?

Answer

The Object-Oriented Programming System, or OOPs for short, is a paradigm that offers ideas like inheritance, classes, and objects.

Question { 956 }

What are the concepts introduced in OOPs?

Answer

An object is a physical thing with a specific state and behavior. It can be described as a class instance.
A class is a logical entity that specifies the blueprint that may be used to generate or instantiate an object.
An object acquiring all of its parent object's characteristics and actions is referred to as inheritance. It offers the possibility to reuse code.

The idea of polymorphism permits a task to be carried out in various ways. To accomplish polymorphism in Java, we employ method overloading and overriding.
Abstraction is a notion that only displays an application's functionality while concealing its internal workings. Java achieves abstraction through the usage of abstract classes and interfaces.
Encapsulation is a term that describes how data and code are wrapped together into

Question { 861 }

Explain what a Binary Search Tree is.

Answer

Data is efficiently stored and retrieved using a binary search tree.
Nodes with keys less than the node's key value can be found in the left sub-tree.
Nodes with keys larger than or equal to the node's key value can be found in the right sub-tree.

Question { 858 }

Explain Doubly Linked Lists?

Answer

A specific kind of linked list that allows traversal across the data components in both directions is called a doubly linked list.
Every node has two linkages, one to the node next to it and one to the node in front of it, which enables accomplishing this.