Denholm Yam steel Factory Planning Engineer Interview Questions and Answers

Java 8 introduced streams which are more efficient than collections in certain cases.

• Streams are useful for processing large amounts of data in parallel

• Collections are better for small amounts of data or when modifying data

• Java 8's stream API provides a functional programming approach to data processing

• Java 7's collections API is more traditional and imperative

• Example: Using streams to filter and map data from a databa...read more

Add one to a given String of number

• Convert the string to integer, add one, and convert back to string

• Handle edge cases like leading zeros

• Consider using built-in functions like parseInt() and toString()

Automate credits of regularly updated VM using scripts

• Create a script to automatically update the VM on a regular schedule

• Utilize tools like Ansible or Puppet for automation

• Set up a cron job to run the script at specified intervals

• Ensure proper testing and monitoring of the automation process

Create a docker file to make mongodb available for developers

• Use the official MongoDB Docker image as the base image

• Expose the default MongoDB port (27017)

• Set up any necessary environment variables or configurations

• Build the Docker image using the Dockerfile

• Run the Docker container with the MongoDB image

Core Java features in Java 8 include lambda expressions, functional interfaces, streams, and default methods.

• Lambda expressions allow you to pass functionality as an argument to a method.

• Functional interfaces have a single abstract method and can be used with lambda expressions.

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

• Default methods allow interfaces to have methods with implementat...read more

Oops concepts in java refer to Object-Oriented Programming principles like Inheritance, Encapsulation, Polymorphism, and Abstraction.

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability of a method to do different things based on the object it is acting upon.

• Abstraction: Hiding the imp...read more