IBM Associate Technical Engineer Interview Questions and Answers

JDK is a development kit for Java programming, while JVM is a virtual machine that runs Java bytecode.

• JDK stands for Java Development Kit and includes tools for developing Java applications.

• JVM stands for Java Virtual Machine and is responsible for running Java bytecode.

• JDK includes JRE (Java Runtime Environment) which contains JVM, libraries, and other necessary components.

• JVM is platform-dependent, while JDK is platf...read more

SDLC stands for Software Development Life Cycle, a process used by software development teams to design, develop, and test high-quality software.

• SDLC is a structured process that consists of several phases including planning, analysis, design, implementation, testing, and maintenance.

• Each phase has its own set of activities and deliverables to ensure the successful development and deployment of software.

• Examples of SDL...read more

Pointers are variables that store memory addresses of other variables. They are used to manipulate memory and improve efficiency.

• Pointers allow for dynamic memory allocation and deallocation

• Pointers can be used to pass variables by reference instead of by value

• Pointers are commonly used in data structures like linked lists and trees

Java is more prevalent in the industry due to its platform independence, strong community support, and extensive libraries.

• Platform independence allows Java programs to run on any device with a Java Virtual Machine (JVM)

• Strong community support ensures continuous updates and improvements to the language

• Extensive libraries provide developers with a wide range of tools and resources to build robust applications

A functional interface is an interface that contains only one abstract method. It can have multiple default or static methods.

• Functional interfaces are used in Java to implement lambda expressions.

• Examples of functional interfaces in Java include Runnable, Callable, and ActionListener.

• Functional interfaces can also be annotated with @FunctionalInterface to ensure they only have one abstract method.

Different types of operating systems include Windows, macOS, Linux, and Unix.

• Windows - developed by Microsoft, commonly used for personal computers

• macOS - developed by Apple, used on Mac computers

• Linux - open-source OS used on servers and embedded systems

• Unix - older OS used in mainframes and servers