Blog Archives
1 2 3

01: Coding “Java way in Scala” Vs “Scala way in Scala”

Example #1: Read from a list & write to a list

Java Way in Scala

Output: List(Java Programming, Scala Programming, Ruby Programming)

Scala Way in Scala: Using the “map”

Read more ›



02: Coding Scala Way – Recursion & Iterator in FP

This extends Coding Scala Way – Part 1 Can you write the following code written in Java the Scala way? Java coding question on recursion and generics Q. … Read...



03: Coding Scala Way – Lazy Eval

Example #6: Lazy initialization & evaluation of code Scala support “views“, which are collections that can be lazily evaluated. One use for views is when you need to traverse a...



04: Coding Scala Way – Null checks with Option-Some-None

Example #10: Null checks with “Option-Some-None”

Nulls in Scala is a code smell, and a better way to handle null values is with an “Option“, which has 2 sub classes “

Read more ›



05: Coding Scala Way – FP concepts

Example #13: Explain the concepts

Can you explain the Scala concepts applied in the following code snippets?

Output:

1. Higher Order Functions:

Read more ›



06: Coding Scala Way – Reduce & Compose functions

Example #14: Reduce operations Given a list of functions as shown below, how will you go about applying all the functions in the list to each input number and sum...



07: Coding Scala Way – Regular Expressions

Example #16: Regular Expression Regular expression (aka regex) to identify numbers in a string. Invoking “findFirstIn” and “findAll” functions of the “Regex” class. “[0-9]+”.r is a short form instead of...



08: Coding Scala Way – Recursion & Higher Order Function

Example #20: nth Fibonacci number

Q1 What is wrong with the following recursive approach to compute the nth Fibonacci number?
A1 It “hangs

Read more ›



09: Coding Scala Way – Fibonacci Series

Example #22: Fibonacci series in Scala This extends determine the nth fibonacci number using Scala. In this let’s print the Fibonacci series of length n. Output: Q1 Is the above...



10: Coding Scala Way – groupBy, mapValues & identity

Java developers need to learn Coding Scala Way. Scala way of coding is quite different & you need to unlearn Java way of coding

Question: Given a list of numbers,

Read more ›



1 2 3

300+ Java & Big Data Interview FAQs

16+ Java Key Areas Interview Q&As

800+ Java Interview Q&As

300+ Java & Big Data Tutorials

Top