CodeGuru Staff

Bruce Eckel’s Thinking in Java Contents | Prev | Next At this point you might be scratching your head, wondering if there is another design for IO streams that could require more typing. Could someone have come up with an odder design?” Prepare yourself: Java 1.1 makes some significant modifications to the IO stream library. […]

Bruce Eckel’s Thinking in Java Contents | Prev | Next Although StreamTokenizer is not derived from InputStream or OutputStream, it works only with InputStream objects, so it rightfully belongs in the IO portion of the library. The StreamTokenizer class is used to break any InputStream into a sequence of “tokens,” which are bits of text […]

Bruce Eckel’s Thinking in Java Contents | Prev | Next Although there are a lot of IO stream classes in the library that can be combined in many different ways, there are just a few ways that you’ll probably end up using them. However, they require attention to get the correct combinations. The following rather […]

Bruce Eckel’s Thinking in Java Contents | Prev | Next RandomAccessFile RandomAccessFile is used for files containing records of known size so that you can move from one record to another using seek( ), then read or change the records. The records don’t have to be the same size; you just have to be able to […]

Bruce Eckel’s Thinking in Java Contents | Prev | Next and useful interfaces The use of layered objects to dynamically and transparently add responsibilities to individual objects is referred to as the decorator pattern. (Patterns [47] are the subject of Chapter 16.) The decorator pattern specifies that all objects that wrap around your initial object […]

Bruce Eckel’s Thinking in Java Contents | Prev | Next The Java library classes for IO are divided by input and output, as you can see by looking at the online Java class hierarchy with your Web browser. By inheritance, all classes derived from InputStream have basic methods called read( ) for reading a single byte […]

Bruce Eckel’s Thinking in Java Contents | Prev | Next The File class has a deceiving name – you might think it refers to a file, but it doesn’t. It can represent either the name of a particular file or the names of a set of files in a directory. If it’s a set of […]

Bruce Eckel’s Thinking in Java Contents | Prev | Next IO system Creating a good input/output (IO) system is one of the more difficult tasks for the language designer. This is evidenced by the number of different approaches. The challenge seems to be in covering all eventualities. Not only are there different kinds of IO […]

Bruce Eckel’s Thinking in Java Contents | Prev | Next When an exception is thrown, the exception-handling system looks through the “nearest” handlers in the order they are written. When it finds a match, the exception is considered handled, and no further searching occurs. Matching an exception doesn’t require a perfect match between the exception […]

Bruce Eckel’s Thinking in Java Contents | Prev | Next with finally There’s often some piece of code that you want to execute whether or not an exception occurs in a try block. This usually pertains to some operation other than memory recovery (since that’s taken care of by the garbage collector). To achieve this […]

Bruce Eckel’s Thinking in Java Contents | Prev | Next When you override a method, you can throw only the exceptions that have been specified in the base-class version of the method. This is a useful restriction, since it means that code that works with the base class will automatically work with any object derived […]

Bruce Eckel’s Thinking in Java Contents | Prev | Next You’re not stuck using the Java exceptions. This is important because you’ll often need to create your own exceptions to denote a special error that your library is capable of creating, but which was not foreseen when the Java hierarchy was created. To create your […]