IBM Senior Application Developer Interview Questions and Answers

Agile methodologies enhance collaboration, flexibility, and efficiency in software development, promoting iterative progress and customer feedback.

• Agile emphasizes iterative development; for example, using sprints to deliver incremental features.

• Daily stand-ups foster communication; teams discuss progress and obstacles, enhancing transparency.

• User stories prioritize customer needs; for instance, defining features ...read more

Streams are sequences of data elements, while functional interfaces enable functional programming in Java.

• Streams: A sequence of elements supporting sequential and parallel aggregate operations.

• Example: List<String> names = Arrays.asList("Alice", "Bob"); names.stream().filter(name -> name.startsWith("A")).forEach(System.out::println);

• Functional Interface: An interface with a single abstract method, enabli...read more

DML scripts and stored procedures are essential for managing data in relational databases effectively.

• DML (Data Manipulation Language) includes commands like INSERT, UPDATE, DELETE, and SELECT.

• Example of an INSERT statement: INSERT INTO Employees (Name, Age) VALUES ('John Doe', 30);

• Stored Procedures (SPs) are precompiled SQL statements that can be executed as a single call.

• Example of a stored procedure: CREATE PRO...read more

An extension function is a function that extends the functionality of an existing class without modifying its source code.

• Extension functions are defined outside of the class they extend.

• They can access the properties and functions of the class they extend.

• They are called using the dot notation on an instance of the class.

LinkedList and ArrayList are both implementations of the List interface in Java. LinkedList uses pointers to connect elements, while ArrayList uses a dynamic array to store elements.

• LinkedList uses pointers to connect elements, allowing for efficient insertion and deletion operations.

• ArrayList uses a dynamic array to store elements, providing fast random access to elements.

• LinkedList is better suited for frequent ...read more

JS works by interpreting and executing code line by line, hoisting moves variable declarations to the top, event loop manages asynchronous operations, Reactjs and Redux are popular libraries for building user interfaces.

• JS works by interpreting and executing code line by line.

• Hoisting in JS moves variable declarations to the top.

• Event Loop in JS manages asynchronous operations.

• Reactjs and Redux are popular librari...read more