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Understanding the Factory Method Pattern

Introduction Hi everyone, I am writing this post to share my knowledge as I continue learning about design patterns. Today, I will present the Factory Method Pattern, which is a design pattern commonly used in real-world applications. If there

Jan 05, 2025 am 10:49 AM

How Can I Execute Command Lines Within a Java Application?

Executing Command Lines in JavaThis article explores a common challenge faced by developers: executing command lines within Java applications....

Jan 05, 2025 am 08:59 AM

object & class creation

Object creation:(Behavior) Example: public class Bank { public static void main(String[] args) { Bank manager = new Bank(); //Object Creation //new allocates memory - Instance - Instantiation manager.openAccount(); //Method Calling Statement B

Jan 05, 2025 am 08:49 AM

HashMap or Hashtable in Java: Which is More Efficient for Single-Threaded Applications?

HashMap vs. Hashtable in Java: Key Differences and Efficiency for Non-Threaded ApplicationsHashMap and Hashtable are fundamental data structures...

Jan 05, 2025 am 08:45 AM

Algorithms I - Princeton - Coursera review

This is a submission for the 2025 New Year Writing challenge: Retro’ing and Debugging 2024. I started the Algorithms Part I course from Princeton University on Coursera, and I think the content is solid. I mean, it is literally taught by the guy who

Jan 05, 2025 am 08:31 AM

How Does Java Handle Ambiguous Method Overloading with Null Arguments?

Method Overloading with Ambiguous Null ArgumentsWhen method overloading involves parameters that can accept null values, Java can encounter...

Jan 05, 2025 am 08:23 AM

How Can I Create a Two-Dimensional Array in Java?

Creating Two-Dimensional Arrays in JavaThe question raised concerns the correct syntax for creating a two-dimensional array with specific...

Jan 05, 2025 am 08:19 AM

Memory Management in Java: Java Virtual Machine

This article is an overview of memory management in Java. It explains key components of the Java Virtual Machine (JVM), including the stack, heap, and garbage collection. Memory management in Java is essential for various reasons. Java Virtual Ma

Jan 05, 2025 am 08:13 AM

How Can I Effectively Replace AsyncTask with java.util.concurrent in Android while Maintaining Backward Compatibility?

AsyncTask API Deprecation in Android 11: Alternative with Java ConcurrencyAs Android 11 approaches, Google is phasing out the AsyncTask API,...

Jan 05, 2025 am 08:06 AM

How to Solve Java 9's InaccessibleObjectException: Reflection and Module System Conflicts?

Addressing InaccessibleObjectException in Java 9: Unable to Make Members AccessibleThe InaccessibleObjectException arises in Java 9 due to the...

Jan 05, 2025 am 07:13 AM

Tv task

Create a class called TV Have below method in it. public void watch() { System.out.println("Watching TV"); } Save and Compile this class. Create another class called Viewer with main method. Inside main method, create an instance for TV

Jan 05, 2025 am 06:56 AM

Overview of Executor Service in Java

Executor and ExecutorService API is a crucial tool for managing and controlling thread execution. They are part of java.util.concurrent package. They simplifies the process of concurrent programming by abstracting the complexities of thread creation,

Jan 05, 2025 am 06:44 AM

Building Observability and Monitoring for Modern Applications with Actuator, Prometheus and Grafana

In today’s world of distributed systems and microservices, ensuring our application is observable and monitorable is just as important as building the core functionality. We’ve already set up critical features like a NGINX load balancer, a rate limit

Jan 05, 2025 am 06:15 AM