Nwcc Supply Chain Solutions Interview Questions and Answers

Java program to find sum and multiplication of an integer input.

• Use the modulus operator to extract each digit from the input integer.

• Add the extracted digits to calculate the sum.

• Multiply the extracted digits to calculate the multiplication.

Java stream to filter JSON object by State and other filters

• Use Java Stream API to filter JSON objects based on State and other filters

• Create a Predicate to filter the JSON objects based on the given filters

• Use the filter() method of Stream to apply the Predicate on the JSON objects

• Collect the filtered JSON objects using the collect() method of Stream

Routing through a proxy involves configuring the proxy server to forward requests to the destination server.

• Configure the proxy server to listen for incoming requests

• Configure the proxy server to forward requests to the destination server

• Configure the client to use the proxy server for outgoing requests

• Use a proxy server to bypass network restrictions or improve performance

• Examples: Nginx, Apache, Squid

Spring MVC is a framework for building web applications in Java.

• Model: Represents the data of the application

• View: Represents the UI of the application

• Controller: Handles the user input and updates the model and view accordingly

• DispatcherServlet: Front controller that receives all incoming requests and routes them to the appropriate handler

• RequestMapping: Annotation used to map web requests to specific handler methods

Java8 introduced new features like lambda expressions, streams, functional interfaces, and default methods.

• Lambda expressions allow you to write more concise code by providing a way to pass functions as arguments.

• Streams provide a way to work with sequences of elements and perform operations like filter, map, reduce, etc.

• Functional interfaces are interfaces with a single abstract method, which can be implemented using lambda expressions.

• Default methods allow interfaces to hav...read more