ArrayIndexOutOfBoundsException in Java

An ArrayIndexOutOfBoundsException is a common runtime exception in Java that occurs when we try to access an element of an array using an invalid index. The valid index range for an array in Java is from 0 to array.length – … Read More

Default Variable Initialization in Java

Default Variable Initialization in Java is to initialize to a default value when they are declared. The default value of a variable depends on its data type. The following table shows the default values of variables in Java: Data Type … Read More

Array Declaration in Java

In Java, arrays are used to store multiple values of the same data type in a single variable. To declare an array in Java, you need to specify the data type of the elements and the array’s name. Array declaration … Read More

What is Caching?

In today’s fast-paced digital world, where speed and efficiency are paramount, technologies like caching play a crucial role in optimizing data retrieval processes. But what is caching? How does it work? What are its different types? If these questions have … Read More

Consistency and Availability in Distributed System

Distributed systems are designed to handle vast amounts of data and provide seamless user experiences. Two crucial aspects that need careful consideration in distributed systems are consistency and availability. In this blog post, we will explore what consistency and availability … Read More

What is Message Queue?

A message queue is a software intermediary that decouples the sender of a message from the receiver. A message queue is a temporary storage area for messages. Messages are stored in the queue until they are processed by a consumer. … Read More

DropWhile() and takeWhile() Methods in Java Stream API

The Java Stream API, introduced in Java 8, revolutionized the manipulation of collections and data processing. With their robust functional programming features, streams offer a diverse set of methods for performing complex operations on data sets. In this blog post, … Read More

Send Email Using Java

In today’s interconnected world, email has become an indispensable communication tool. As a Java developer, knowing how to send emails programmatically can be a valuable skill. In this blog post, we will explore the process of sending emails using Java, … Read More

What is Atomicity?

Atomicity refers to the concept of atomic operations or transactions in computer science and database systems. An atomic operation is an indivisible and irreducible unit of work. It means that either the entire operation is performed, or none of it … Read More

API Design

Introduction An API, or Application Programming Interface, is software to communicate between different software components. APIs are used all the time in the modern world, from web applications to mobile apps to cloud-based services. API design is the process of … Read More