Java Multithreading and Concurrency Series Roadmap
This series is designed as a full Java multithreading and concurrency curriculum. The goal is not to collect disconnected interview notes. The goal is to bui...
Technical Blog
Recent posts
Sort Array by Parity in Java
This guide explains the intuition, optimized approach, and Java implementation for sort array by parity in java, with practical tips for interviews and produ...
Maximum Subarray in Java (Kadane Algorithm)
This guide explains the intuition, optimized approach, and Java implementation for maximum subarray in java (kadane algorithm), with practical tips for inter...
Valid Parentheses in Java
Given a string containing only ()[]{}, return true if brackets are valid. A valid string must close in correct order and with correct bracket type.
Find All Numbers Disappeared in an Array in Java
Given an array nums of size n where values are in range [1, n], some numbers appear twice and others are missing. Return all missing numbers.