Accenture Java Developer Interview Questions, Process, and Tips

wait, notify, and notifyAll are methods used for inter-thread communication in Java.

• wait() method causes the current thread to wait until another thread invokes the notify() or notifyAll() method for this object.

• notify() method wakes up a single thread that is waiting on this object's monitor.

• notifyAll() method wakes up all threads that are waiting on this object's monitor.

Spring is a framework for building Java applications, while Spring Boot is a tool that simplifies the setup and configuration of Spring applications.

• Spring is a comprehensive framework for building Java applications, providing support for various modules like Spring MVC, Spring Security, and Spring Data.

• Spring Boot is an opinionated tool that simplifies the setup and configuration of Spring applications by providing de...read more

Lambda expression is a concise way to represent an anonymous function in Java.

• Lambda expressions are used to provide implementation of functional interfaces.

• They enable you to treat functionality as a method argument, or code as data.

• Syntax: (parameters) -> expression or (parameters) -> { statements; }

• Example: (int a, int b) -> a + b

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

• Abstract class can have constructor, fields, and methods, while interface cannot have any of these.

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

• Abstract classes are used to define common behavior among subclasses, while interfaces are used to define a contract for classes to...read more

SpringBoot annotations are used to simplify the development process by providing shortcuts for common tasks.

• 1. @SpringBootApplication - marks the class as a Spring Boot application

• 2. @RestController - marks the class as a controller where methods return data directly instead of a view

• 3. @Autowired - injects a bean by type

• 4. @GetMapping, @PostMapping, @PutMapping, @DeleteMapping - map HTTP methods to controller methods

• 5...read more

Filter numbers using Stream API in Java

• Use filter() method to specify the condition for filtering numbers

• Use mapToInt() method to convert Stream of numbers to IntStream

• Use collect() method to collect the filtered numbers into a list

The application will not be able to read the properties specified in the file, leading to potential errors or failures.

• The application may fail to start or function properly if it relies on specific properties defined in the file.

• Any configurations or settings specified in the properties file will not be applied.

• The application may throw exceptions or errors related to missing properties or configurations.

• It is importa...read more

SOLID principles are a set of five design principles that help 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 sub...read more

No, Java does not support multiple inheritance.

• Java does not support multiple inheritance to avoid the Diamond Problem.

• Instead, Java supports multiple interface inheritance.

• Example: Class A extends Class B and Class C, which both have a common method. This would lead to ambiguity in Java.