Elfonze Technologies Lead Architect Interview Questions and Answers

Core Java concepts include OOP, inheritance, polymorphism, encapsulation, and abstraction.

• Object-oriented programming (OOP) is a programming paradigm based on the concept of objects.

• Inheritance allows a class to inherit properties and methods from another class.

• Polymorphism allows objects to take on multiple forms or behaviors.

• Encapsulation is the practice of hiding data and methods within a class.

• Abstraction is the pr...read more

Java 8 features like streams and lambdas make collections more efficient and concise.

• Java 8 introduced streams which allow for functional-style operations on collections.

• Lambdas can be used to define custom operations on collections.

• The 'filter' method can be used to select elements from a collection based on a condition.

• The 'map' method can be used to transform elements in a collection.

• The 'reduce' method can be used ...read more

Java program to solve vehicle-manufacturer relationship problem using custom objects

• Create custom Java objects for vehicle and manufacturer

• Establish relationship between them using appropriate data structures

• Write a program to solve the problem using the objects and their relationships

• Use object-oriented programming principles to ensure code reusability and maintainability