Accenture Java Developer Interview Questions, Process, and Tips

Java development involves writing, testing, and deploying code using Java programming language.

• Write code using Java programming language

• Test the code using various testing frameworks like JUnit

• Deploy the code using tools like Maven or Gradle

• Use Integrated Development Environments (IDEs) like Eclipse or IntelliJ IDEA for development

• Follow coding best practices and design patterns

• Collaborate with team members using vers

Java 8 introduced several new features including lambda expressions, streams, and default methods.

• Lambda expressions allow for functional programming and simplify code.

• Streams provide a way to process collections of data in a functional way.

• Default methods allow for adding new methods to interfaces without breaking existing implementations.

• Other features include the Date and Time API, Nashorn JavaScript engine, and imp...read more

Iterating an ArrayList using stream in Java

• Convert the ArrayList to a stream using stream() method

• Use forEach() method to iterate through the stream

• Use lambda expression to perform an action on each element

• Example: myList.stream().forEach(element -> System.out.println(element));

Spring Boot application context is a container that manages the lifecycle of beans and provides dependency injection.

• Spring Boot application context is responsible for creating and managing beans.

• It provides dependency injection by wiring beans together.

• It supports different types of scopes for beans such as singleton, prototype, etc.

• It can be configured using annotations or XML configuration files.

• Example: @ComponentS...read more

Versions in REST API can be handled using URL versioning, header versioning, or media type versioning.

• URL versioning involves adding the version number in the URL path, e.g. /api/v1/users

• Header versioning involves adding the version number in the request header, e.g. X-API-Version: 1

• Media type versioning involves adding the version number in the media type, e.g. application/vnd.company.v1+json

• Choose a versioning strate...read more

An object is an instance of a class that encapsulates data and behavior.

• Objects have state and behavior

• They can interact with other objects through methods

• Objects can be created from classes

• Example: A car object has state (color, model) and behavior (drive, stop)

• Example: A person object has state (name, age) and behavior (eat, sleep)

Encapsulation is the process of hiding implementation details and providing access to only necessary information.

• Encapsulation is achieved through access modifiers like private, public, and protected.

• It helps in achieving data security and prevents unauthorized access.

• Encapsulation also helps in achieving code maintainability and flexibility.

• For example, a class can have private variables and public methods to access t...read more

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 is achieved through method overriding and method overloading.

• Example: A parent class Animal can have child classes like Dog, Cat, and Bird. All these child classes can have their own implementation of the method 'makeSound', which is overridden from the parent...read more

Inheritance is a mechanism in OOP where a new class is derived from an existing class.

• It allows the new class to inherit the properties and methods of the existing class.

• The existing class is called the superclass or parent class, and the new class is called the subclass or child class.

• The subclass can add new properties and methods or override the existing ones.

• Example: A Car class can be a superclass, and a SportsCar...read more