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Jakarta MVC 2.0 Progress

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The work with Jakarta MVC 2.0 goes forward. According to the Jakarta EE Specification Process (JESP), we are now in the development phase where we will release as many milestones as we need until we are satisfied to move on to finalize the specification. There are already Milestone 1 releases available of both the Spec+API and the TCK in Jakarta ...

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Python os.walk() Method

Hello in this tutorial, we will understand the os.walk method to list the files in a directory using the python programming. 1. Introduction The os.walk(……) method will generate the file names in a directory tree by walking the tree either top-down or bottom-up. Represented with the following syntax – 1 os.walk(path_name, topdown=False, onerror=None, followlinks=False) Where, path_name denotes the directory path ...

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Constructor Example in Python

Hello in this tutorial, we will explain how a Constructor works in python programming, using examples. 1. Introduction Constructors are used for instantiating an object and assign values to the data members of a class. In python, the method __inti()__ simulates the class constructor and is called every time the class is instantiated. It accepts the self keyword as an ...

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Kafka & Zookeeper for Development: Local and Docker

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Kafka popularity increases every day more and more as it takes over the streaming world. It is already provided out of the box on cloud providers like AWS, Azure and IBM Cloud. Eventually for cases of local development it is a bit peculiar due to requiring various moving parts. This blog will focus on making it easy for a developer ...

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GC Logs changes for migrating from JDK 8 to JDK 11

Problem Moving from JDK 8 to JDK 11 is quiet subtle. One issue which many people have faced is regarding is GC Logs. Solution JDK 11 uses generic logging mechanism. So flags like PrintGCDetails, PrintGCDateStamps don’t work anymore. The new format is easy to use once you understand it. Format is : 1 [tag selection][:[output][:[decorators][:output-options]]] There are 4 sections to ...

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Use the Power of your Database: XML and JSON

Today databases have a lot of functionality that is often not used by software developers because they simply not know that this exists. But knowing about this features can save a lot of time because you may write less code. One of this hidden gems is the ability of producing XML or JSON data using a SQL SELECT statement. In ...

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Java Program to Find Transpose of a Matrix

A quick and practical guide to calculate the matrix transpose in java. Transpose of a given matrix is nothing but the changing the values and order. 1. Overview In this article, you’ll learn how to find the transpose of a given matrix using a simple for loop. You can go thorough the previous articles on addition and multiplication of two ...

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