What is Multithreading in Java? In multithreading, a program is divided into two or more subprograms or threads that can run concurrently (at the same time) in parallel or concurrently in a shared memory space. Each thread represents a separate flow of control within the program, allowing multiple operations to be performed simultaneously. Multithreading is… Read More »
The new version of Java, Java 21, is finally released on September 19, 2023, as the next long-term support (LTS) version. Because of this LTS version, it will be used in commercial support as the next stable version. After working on a total of 2585 JIRA issues, of which 1868 were resolved by Oracle and… Read More »
Whenever we install a new version of Eclipse IDE, which comes with the latest support for JVM, while opening Eclipse IDE, we may get the following error: Version 1.8.0_301 of the JVM is not suitable for this product. Version 17 or greater is required. Steps to resolve JVM version 17 or greater is required Step… Read More »
Install and Run Apache Kafka on Windows Apache Kafka is an open-source distributed event streaming platform that acts as a high-throughput, fault-tolerant, and scalable message broker. It enables the efficient ingestion, storage, and distribution of data streams within a system. Producers publish data on specific topics, which are further partitioned for parallel processing. Consumers subscribe… Read More »
In Java, System.out.println() is a statement that is used to print the arguments passed to it to the standard output, typically a console window. Let us understand System.out.println in Java in detail: System in Java System is a predefined final class present in the java.lang package. It is automatically imported in every Java program, we… Read More »
Iterator design pattern is a Behavioral design pattern that provides a way to access the elements of a collection without exposing the underlying implementation of the collection. In other words, it gives a way to traverse the elements of the collection without exposing the internal implementation of the collection. In the above figure, we can… Read More »
Yoda Condition: Good or Bad The term Yoda condition refers to a standard programming practice that says we must reverse the typical order of a conditional statement in code. It is named after the Star Wars character Yoda, who speaks in a unique way, where he switches the order of subjects and verbs in his… Read More »
Apache Kafka To learn in more detail, please refer the Introduction to Apache Kafka. Apache Kafka architecture diagram The ecosystem of Apache Kafka consists of Kafka Clusters, these clusters contain Brokers, the broker contains Topics and the topics contain Partitions. Given below is the Kafka architecture diagram, which provides a complete picture of Kafka architecture.… Read More »
The Observer design pattern is a Behavioral design pattern that defines a one-to-many dependency between objects so that when one object changes state, all its dependent objects (observers) are notified and updated automatically. This pattern is also known as the Publish-Subscribe pattern. Observer design pattern real world example Let’s understand the observer design pattern with… Read More »
Shallow Copy A shallow copy is a type of copy made by cloning or copying the original object, but it does not contain copies of objects nested within the original object. Instead, it creates a new copy that references the same nested objects as the original object. Let’s understand with the following diagram: As we… Read More »