These days, the Internet provides a wealth of knowledge on just about anything. While you can undoubtedly find information on Java programming online, the information you gather won't exactly translate into the same skills that a certified programmer can provide you with. Learn just some of the things a programmer can do that you can't do on your own.
A programmer can give you a level of reliability that you cannot provide on your own. Aside from your level of knowledge, the main difference between you and a programmer is that you're performing the task in your pastime while it's the programmer's job. Developing a system can literally take tens of hours to perform.
If you're only working on the system in your pastime, it can take you a considerably long time to complete your software system. A programmer will dedicate more hours to the project and get your system up and running sooner. When you need a new program designed, and you don't have a lot of time, the added reliability is especially helpful.
When it comes to Java, the term is more of a general term than a specific reference. Java can involve everything from JSP systems to Servlets to JSF. To ensure the software development system is functional, you have to know how to incorporate each of these sub-systems into the development progress.
A basic level of understanding gained from the Internet isn't going to equip you to meet this goal. Java programmers have a vast wealth of knowledge on all these, and many other, sub-systems to address all your programming needs.
Java programmers get a view of a company that most people don't. During the software planning phase, the programmer has to learn the ins and outs of a company, how they use information, and even some of their processes.
While programmers do typically sign confidentiality agreements, they can bring some of their past experience from working with businesses in the same industry as you to help you with your design plans. A programmer can make different recommendations based on their experience to help you design a program that meets all your needs with ideas that you might not have thought of beforehand.
A certified Java programmer can help you develop a website or software program that your customers can easily navigate, as well as a functional cloud-based system that your employees can navigate just as easily. Let a programmer do what you can't.