Functional Composability with Lambdas in Java — Originally Published in https://asyncq.com/ Introduction Composition is one of the attractive features that can be built using Lambdas in Java. Often time we need to compose different functions in order to build higher-level functions. In this article, we will deep dive to understand function composability and how we can achieve it…

Best Java Exercises to Improve Java Skills — Introduction This Page consists of a list of Java exercises that will help to increase Java knowledge. The target audience is from Beginners to Intermediate Level. I will keep adding and updating this list moving forward. If you have any recommendations don’t hesitate to write them down in the comment section. …

Java solution for checking if a string is a palindrome Introduction A palindrome is a word that reads the same forward and backward. In this article, we will write logic to check if the input string is palindrome or not. Checking for Palindrome Palindromes are words that read the same backward and forward. For…

Using Java to generate all the substrings from a string — Introduction A substring is a continuous sequence of characters within a string. It is essentially a portion of the string from the start index and end index. In this article, we will generate all the substrings from a string in Java. Generating Substrings To extract substrings, we need to consider starting from all…

Java Solution for Leetcode #3 — Introduction We are solving a very popular and most asked leetcode question. This question is asked by companies like Facebook. Problem Statement Given a string s, find the length of the longest substring without repeating characters. Examples Solution Since we need to find a substring that doesn’t contain repeating characters, immediate thinking would be to…

Java Resources That Matters! — Introduction This week’s edition includes 13 blogs, 4 videos, 5 courses, 4 interview preparation resources, and 12 jobs across Japan, Singapore, Netherlands, Germany, and Luxembourg. Let me know if you have any feedback or any other feature requests for this newsletter. I would love to consider it. Show us some love…

Discussing Generics and Type erasure with simple code example — Introduction Generics Introduced stronger compile time type check for developers. Since type check was added for compile time, it results in losing Type information at runtime. This is called type erasure. In this article, we will learn about Type erasure along with examples. Generics In Java Generics were introduced in Java 5, its main…

Learning different log levels with their order along with the demo — Introduction Log levels are the way to categorize application log messages based on their severity and priority. In this article, we will learn about various log levels & how to set them in Spring Boot Log Levels TRACE Trace messages provide detailed information on execution. For detailed debugging trace logs are added to…

Ruby Solution for Leetcode #3 — Introduction We are solving a very popular and most asked leetcode question. This question is asked by companies like Facebook. Problem Statement Given a string s, find the length of the longest substring without repeating characters. Examples Solution Since we need to find a substring that doesn’t contain repeating characters, immediate thinking would be to…