PROBLEM DESCRIPTION You are given two integer arrays nums1 and nums2, sorted in non-decreasing order, and two integers m and n, representing the number of elements in nums1 and nums2 respectively....

FLYWEIGHT The Flyweight pattern is a design pattern that helps optimize memory usage by sharing common data between multiple objects. It is particularly useful when dealing with objects that have ...

FACADE The Facade design pattern is a structural design pattern that provides a simplified interface to a complex system, making it easier to use. It encapsulates the complexity of the system behi...

DECORATOR Decorator design pattern is a structural design pattern that allows us to add extra features or behaviors to an object without changing its original structure. In this example, we have ...

ADAPTER The Adapter design pattern is a structural design pattern that allows objects with incompatible interfaces to work together. It acts as a bridge between two incompatible interfaces, conver...

This following post is based on the Udemy Course: Java Multithreading UNDERSTANDING INTERRUPT USING CODE The main thread pauses for 500 milliseconds (0.5 seconds) using Thread.sleep(500). This ...

This following post is based on the Udemy Course: Java Multithreading CALLABLE AND FUTURE Callable is an interface that represents a task or computation that can be executed in a separate threa...

This following post is based on the Udemy Course: Java Multithreading SEMAPHORES A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each acquire() blocks if necessar...

This following post is based on the Udemy Course: Java Multithreading DEADLOCK Process 1 Process 2 +-----------------+ +-----------------+ | Resource A | | Resource B |...

FACTORY This pattern involves creating two key components: a “product” and a “factory.” In this example, the “product” is the Database interface. It defines the common methods that all types of d...