Leetcode

1291. Sequential Digits

Sequential digits are numerical sequences where each digit in a number is incremented by one compared to its predecessor. For example, 123, 234, and 345 are sequential digits because each subsequent number follows a pattern of increasing by one. These sequences are not only intriguing but also have practical applications in mathematics, computer science, and…

Tech

Configuring CORS (Cross-Origin Resource Sharing) in Micronaut

Introduction: Cross-Origin Resource Sharing (CORS) is an important security feature implemented by web browsers to prevent malicious websites from accessing resources on other domains. In a Micronaut application, configuring CORS properly ensures that your APIs can be accessed securely from web applications hosted on different origins. In this blog post, we’ll explore how to configure…

Micronaut

How To Serve PDF Files from a Micronaut Controller

In web applications, serving static files like PDFs is a common requirement, especially when dealing with documents, reports, or downloadable content. Micronaut, a modern JVM-based framework for building microservices and serverless applications, provides convenient features for handling file downloads from controllers. In this blog, we’ll explore how to serve PDF files from a Micronaut controller…

Leetcode

739. Daily Temperatures

In the realm of algorithmic problem-solving, certain patterns and techniques emerge as powerful tools for tackling a variety of challenges. One such technique involves the clever use of stacks to efficiently solve problems that require finding the next greater element or value in an array. In this blog, we’ll explore how to leverage the stack…

Tech

Solving couldn’t get current server API group list

In Kubernetes, administrators and developers may encounter various errors during cluster management and application deployment. One common error is “Couldn’t Get Current Server API Group List,” which can occur when interacting with the Kubernetes API server. This error can disrupt operations and hinder troubleshooting efforts, but understanding its causes and solutions is crucial for maintaining…

Java

What is a NullPointerException, and how to fix it?

NullPointerException (NPE) is a notorious runtime exception that plagues Java developers, often leading to unexpected crashes and errors in their applications. In this blog, we’ll explore the causes of NullPointerExceptions, examine common scenarios where they occur, and provide practical examples and best practices for preventing and handling them effectively. Causes of NullPointerException: Uninitialized Variables: In…

Tech

Zero Trust in Cyber Security

Cyber Security Invloves securing multiple aspect of business which includes application, data, network and physical devices. Today we will explore the Network part of Cyber security and will discuss Zero Trust Principle in great detail. What is Cyber Security? Cybersecurity involves protecting computer systems, networks, and data from unauthorised access and cyber attacks.In today’s digital…

Tech

Resetting Kafka Consumer Offset in Kafka Connectors

Kafka Connectors are a crucial component in building scalable and fault-tolerant data pipelines. However, there are situations where you may need to reset the consumer offset, whether due to unexpected issues, changes in data schema, or other operational requirements. In this blog post, we will delve into the various aspects of resetting Kafka consumer offsets…

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