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Thinking in Java
Prev Contents / Index Next

You must create
all the objects

When you create a reference, you want to connect it with a new object. You do so, in general, with the new keyword. The keyword new says, “Make me a new one of these objects.” So in the preceding example, you can say:

String s = new String("asdf");


Not only does this mean “Make me a new String,” but it also gives information about how to make the String by supplying an initial character string.

Of course, String is not the only type that exists. Java comes with a plethora of ready-made types. What’s more important is that you can create your own types. In fact, that’s the fundamental activity in Java programming, and it’s what you’ll be learning about in the rest of this book.
Thinking in Java
Prev Contents / Index Next


 
 
   Reproduced courtesy of Bruce Eckel, MindView, Inc. Design by Interspire