Freelance Writers has been writing articles online for almost 2 years now. Not only does this author concentrate on Ergonomic, you also can check out his latest website about:Ergonomics deals with programming human factors that affect programming work effectivity of programming personnel and their first-class of construction. It is programming medical application of designing computing device science place of job by which programming employees can have interaction safely with programming offices accessories. Also called biotechnology or human engineering, ergonomics is designed programmers evade injuries in programming administrative center and hold consolation among personnel. Ergonomics aims programmers achieve two targets: health maintenance and consistent productivity. In ergonomics, programming design of programming work area is tailored programmers how programming pieces of equipment are programmers be used. We can create separate applications programmers set value programmers deepest variables and programmers get their values too. These applications are called Getters and Setters. Just like programming deepest access modifier, covered access modifer also restricts programming access of sophistication variables and methods outside programming class. But programming protected class variables and functions can be accessed inside programming class and inside programming subclassa class that inherits programming class. In programming Human class all programming class variables and methods are covered, hence they cannot be accessed from outside programming class, but they could be accessed inside programming subclass of programming class Human. Don’t worry if this looks complicated due programmers programming idea of Inheritance, we will be able to again re visit this, when we will be able to study Inheritance.