Former JavaSoft programmer Dave Brown has never regretted going crazy over Java during the summer of 1995. One night a friend turned him on to the Java web site. I was hooked, and that winter I came out to work for Sun. You read files such as word-processing documents from your computer, workstation, or Mac. If you wrote a word-processing application in Java, it would look at documents from the local disk and store it to the local disk.
Every object has a type.
The type of an object is its class. A class is a description of what constitutes that object and what you can ask it to do. Different classes represent different things in programming. And that's that. There's no reasonable competition.