10+ GlobalLogic Software Developer Interview Questions and Answers

Generate the first 'X' terms of a series 3 * N + 2, excluding multiples of 4.

• Iterate through numbers starting from 1 and check if 3 * N + 2 is not a multiple of 4.

• Keep track of the count of terms generated and stop when 'X' terms are found.

• Return the list of 'X' terms that meet the criteria.

• Example: For X = 4, the output should be [5, 11, 14, 17].

Reverse the order of elements in an array and display the reversed array.

• Iterate through the array from both ends and swap the elements until the middle is reached.

• Use a temporary variable to store the element being swapped.

• Print the reversed array after all elements have been swapped.

The problem involves finding the number of ways to tile a 2xN board using 2x1 tiles.

• Use dynamic programming to solve this problem efficiently.

• Define a recursive function to calculate the number of ways to tile the board.

• Consider both horizontal and vertical placements of tiles.

• Implement the function to handle large values of N using modulo arithmetic.

• Example: For N = 4, the number of ways to tile the board is 5.

Return the middle element of a singly linked list, or the one farther from the head if there are even elements.

• Traverse the linked list with two pointers, one moving twice as fast as the other

• When the fast pointer reaches the end, the slow pointer will be at the middle

• If there are even elements, return the one that is farther from the head node

• Handle edge cases like linked list of size 1 or empty list

An interface in OOP defines a contract for classes to implement, specifying methods without implementation details.

• An interface contains method signatures without any implementation.

• Classes can implement multiple interfaces in Java.

• Interfaces are used to achieve abstraction and multiple inheritance in OOP.

• Example: Java interface 'Runnable' with 'run()' method.

Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.

• Abstract class can have constructors, member variables, and methods with implementation.

• Interface can only have abstract methods and constants.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Example: Abstract class - Animal with abstract method 'eat', Interface - Flyable with method 'fly'.

SOLID principles are a set of five design principles in object-oriented programming to make software designs more understandable, flexible, and maintainable.

• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open/Closed Principle: Software entities should be open for extension but closed for modification.

• L - Liskov Substitution Principle: Objects of a superclass should be replaceable with objects of its subclasses without affecting the func...read more

Virtual functions in C++ allow a function to be overridden in a derived class, enabling polymorphic behavior.

• Virtual functions are declared in a base class with the 'virtual' keyword.

• They are overridden in derived classes to provide specific implementations.

• Virtual functions enable polymorphism, allowing objects of different derived classes to be treated as objects of the base class.

• Example: class Animal { virtual void makeSound() { cout << 'Animal sound'; } }; class Dog : pu...read more

Piping in Unix/Linux allows output of one command to be used as input for another command.

• Piping is done using the | symbol in Unix/Linux.

• It allows for the output of one command to be directly used as input for another command.

• Piping can be used to chain multiple commands together to perform complex operations.

• Example: ls -l | grep 'txt' - This command lists files in long format and then filters for files with 'txt' in their name.

Dependency injection is a design pattern in which components are given their dependencies rather than creating them internally.

• Dependency injection helps in achieving loose coupling between classes.

• It allows for easier testing by providing a way to mock dependencies.

• There are three types of dependency injection - constructor injection, setter injection, and interface injection.

• Example: In a Java application, a service class can be injected with a DAO interface implementation ...read more

Java is a popular programming language used for developing a wide range of applications.

• Java is an object-oriented language known for its platform independence.

• It is used for developing web applications, mobile apps, enterprise software, and more.

• Java is widely used in the industry due to its robustness, security, and scalability.

• Globalogiv is likely a typo or a specific term related to a particular project or company.

• Java has a large community of developers and extensive lib...read more

Code to find the length of a string in an array of strings

• Iterate through each string in the array and use the length property to find the length of each string

• Store the length of each string in a separate array or print it out directly

A stack is a data structure that follows the Last In First Out (LIFO) principle.

• Elements are added and removed from the top of the stack.

• Common operations include push (add element) and pop (remove element).

• Example: Undo functionality in a text editor.

Comparator is an interface used to compare objects, while comparison is the act of comparing two or more objects.

• Comparator is an interface in Java used to define custom sorting logic for objects.

• Comparison is the process of evaluating the similarities and differences between two or more objects.

• Comparator is used in sorting algorithms like Collections.sort() to define the sorting order.

• Comparison is a general term used in various contexts to determine the relationship betwee...read more

Program to generate Fibonacci series using iterative approach.

• Initialize variables for first two numbers in series

• Use a loop to calculate and print next numbers in series

• Repeat until desired number of terms is reached

Run time polymorphism is achieved in object-oriented programming by using virtual functions and pointers.

• Use base class with virtual functions

• Create derived classes that override the virtual functions

• Use pointers of base class type to store objects of derived classes

• Call the virtual functions through the base class pointers to achieve polymorphism