Accenture Java Developer Interview Questions and Answers

Java 8 introduced lambda expressions, Java 11 added local-variable syntax for lambda parameters, and Java 17 included sealed classes and pattern matching.

• Java 8 introduced lambda expressions for functional programming.

• Java 11 added local-variable syntax for lambda parameters to simplify code.

• Java 17 included sealed classes to restrict inheritance and pattern matching for instanceof checks and type casts.

Using Java 8 features like streams and lambdas to manipulate strings efficiently.

• Use Stream API to filter strings: List<String> filtered = strings.stream().filter(s -> s.startsWith("A")).collect(Collectors.toList());

• Transform strings with map: List<String> uppercased = strings.stream().map(String::toUpperCase).collect(Collectors.toList());

• Count occurrences of a character: long count = strings.stream().fi...read more

Java is a high-level, object-oriented programming language known for its portability, security, and robustness.

• Java is platform-independent, meaning it can run on any device with a Java Virtual Machine (JVM)

• It is object-oriented, allowing for the creation of reusable code and modular programs

• Java is known for its security features, such as sandboxing and encryption

• It is widely used in web development, mobile applicatio...read more

Java is not purely object-oriented as it also supports primitive data types and static methods.

• Java supports primitive data types like int, double, boolean which are not objects.

• Static methods in Java belong to the class itself and do not require an instance to be called.

• Java also has features like enums and interfaces which are not strictly object-oriented.

I am motivated to seek employment at this company because of its reputation for innovation and commitment to employee growth.

• I am impressed by the company's track record of developing cutting-edge technology solutions.

• I value the emphasis this company places on continuous learning and professional development.

• I am excited about the opportunity to work with a talented team of developers and contribute to impactful proje...read more

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

• Lambda expressions allow for more concise code and enable functional programming.

• Functional interfaces are interfaces with a single abstract method, used for lambda expressions.

• Streams provide a way to work with sequences of elements and support parallel processing.

• Default methods allow interfaces to...read more

Currently working as a Java Developer at XYZ Company, responsible for developing and maintaining Java applications.

• Developing and maintaining Java applications

• Collaborating with team members on projects

• Participating in code reviews and debugging

• Implementing new features and enhancements

• Troubleshooting and resolving technical issues