Wittybrains Software Technologies Software Engineer Interview Questions, Process, and Tips

I wish to work on developing applications using artificial intelligence and machine learning technologies.

• Passionate about developing intelligent systems that can learn and adapt

• Interested in working on projects involving natural language processing, computer vision, and predictive analytics

• Experience with tools and frameworks like TensorFlow, PyTorch, and scikit-learn

Program to find duplicate number in array of 1 to 100 items.

• Iterate through array and use a set to keep track of seen numbers.

• If a number is already in set, it is a duplicate.

• Return the duplicate number found.

A program to count the number of vowels and consonants in a given string.

• Iterate through each character in the string

• Check if the character is a vowel or consonant

• Increment the respective count

• Return the counts of vowels and consonants

Program to reverse a string

• Use a loop to iterate through the string and append each character to a new string in reverse order

• Alternatively, use built-in string functions like reverse() or slice()

Program to delete middle node from linked list

• Traverse the list to find the middle node

• Delete the middle node by updating pointers

• Handle edge cases like even number of nodes

Truncate removes all data from a table while drop deletes the table itself.

• Truncate is faster than drop as it only removes data and not the table structure

• Truncate cannot be rolled back while drop can be

• Truncate resets the identity of the table while drop does not

• Truncate can only be used on tables while drop can be used on tables, views, and indexes

Static keyword is used to define a class-level variable or method that can be accessed without creating an instance of the class.

• Static variables are shared among all instances of a class

• Static methods can be called without creating an object of the class

• Static keyword can also be used to define a static block of code that gets executed only once when the class is loaded

• Example: public static int count = 0; or public s

Polymorphism is the ability of an object to take on many forms.

• Polymorphism allows objects of different classes to be treated as if they are of the same class.

• It can be achieved through method overloading or method overriding.

• Example: A shape class can have different subclasses like circle, square, and triangle. Each subclass can have its own implementation of the draw method.

• Polymorphism makes code more flexible and r