Technology moves fast. Day to day rapidly changing the technology. If you are stuck in one technology (most of all using java 1.6 or java 1.7 till now even java 1.8 is released over years and java 9 is knocking for the releasing), you probably only one employee in your organization. As per statistics in 2017, most of the company used these technologies. It is better to get a job in the current market if If you know these technologies. You should familiarize with these technologies.
If you are fresher then you have to concentrate on the basic concept of the related technologies, As I am java developer I suggest you learn java programming. Before started to learn any framework, first you should hands dirty in core java, mostly oops concept, threading, exception, collection framework.
1. Learn any of one framework:
A software framework provides a standard way to build and deploy applications. The aim of software frameworks to facilitate software development by allowing designers and programmers to devote their time to focusing software requirements rather than dealing with the more standard low-level details of providing a working system, thereby reducing overall development time. Software frameworks may include support programs, compilers, code libraries, application programming interfaces (APIs) that bring together all the different components to enable development of a project. Refer my previous article of the latest framework for the web development.
In short, Database is used to store the data/information for the further communication. The developers should know the database concept as well. Now days, most of are using ORM tools like hibernate, but many companies are still using RDBMS (Oracle, My SQL, MS SQL Server, etc..).
If you have knowledge in any framework then you should learn a ORM based framework like hibernate. Because mostly those are using framework for developing the application those are highly used ORM tools like hibernate for persist the data. Hibernate framework simplifies the development of java application to interact with the database. Hibernate is an open source, lightweight, ORM (Object Relational Mapping) tool. An ORM tool simplifies the data creation, data manipulation and data access. It is a programming technique that maps the object to the data stored in the database.
Advantages of Hibernate Framework:
- Opensource and Lightweight.
- Fast performance.
- Database Independent query / HQL.
- Automatic table creation.
- Simplifies complex join.
MongoDB is easy to learn. MongoDB is a free and open-source cross-platform program. It is well document-oriented database program. Classified as a NoSQL database program. MongoDB uses JSON-like documents with schemas. Document databases like MongoDB fit well with big AJAX applications or object-oriented back ends.
Top giant companies like Facebook, Bosch, Metlife, Forbes using Mongo DB.
Version control systems are software tools that help a software team manage changes to source code over time. Version control software keeps track of every modification. If any mistake is made, developers can turn back the clock and compare earlier versions of the code to help fix the mistake while minimizing disruption to all team members. Software developers working in teams are continually writing new source code and changing existing source code. For an example: One developer on the team may be working on a new feature while another developer fixes an unrelated bug by changing code, each developer may make their changes in several parts of the file tree. Version control helps teams solve these kinds of problems, tracking every individual change by each contributor and helping prevent concurrent work from conflicting.
When you worked on big project. Then It is very difficult to manage the project. Maven solves this kind of problems. Maven is a powerful project management tool that is based on POM (project object model). It is used for projects build, releases, dependency, reporting and documentation.
A bug tracking system or defect tracking system is a software application that keeps track of reported software bugs in software development projects.
Below list of bug tracking tools:
- Mantis BT
- Request Tracker