Java2007-09-15
What Java Has Removed from C++
There are a number of C++ features that Java does not support. In some cases, a specific C++ feature simply didn't relate to the Java environment. In other cases, the designers of
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Java2007-09-15
Creating and Handling JAR files
A utility is used to generate a JAR file. Its syntax is shown here
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PushbackInputStream example program in Java
One of the novel uses of buffering is the implementation of pushback. Pushback is used on an input stream to allow a byte to be read and then returned (that is, "pushed back") to t
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BufferedInputStream - sample program in Java
Buffering I/O is a very common performance optimization. Java's BufferedInputStream class allows you to "wrap" any InputStream into a buffered stream and achieve this performance i
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ByteArrayOutputStream - sample program in Java
ByteArrayOutputStream is an implementation of an output stream that uses a byte array as the destination. ByteArrayOutputStream has two constructors, shown here:
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ByteArrayInputStream - sample program in Java
ByteArrayInputStream is an implementation of an input stream that uses a byte array as the source. This class has two constructors, each of which requires a byte array to provide t
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Java2007-09-14
FileOutputStream - sample program in Java
FileOutputStream creates an OutputStream that you can use to write bytes to a file. Its most commonly used constructors are shown here:
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FileInputStream - sample program in Java
The FileInputStream class creates an InputStream that you can use to read bytes from
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FilenameFilter - sample program in Java
You will often want to limit the number of files returned by the list() method to include only those files that match a certain filename pattern, or filter. To do this, you must us
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list() contents of a Directory - sample program in Java
A directory is a File that contains a list of other files and directories. When you create a File object and it is a directory, the isDirectory() method will return true. In this c
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File example program in Java
Although most of the classes defined by java.io operate on streams, the File class does not. It deals directly with files and the file system. That is, the File class does not spec
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Random class sample program in Java - nextGaussian(), nextBoolean(), nextBytes(), nextInt(), nextLong(), nextFloat(), nextDouble()
The Random class is a generator of pseudorandom numbers. These are called pseudorandom numbers because they are simply uniformly distributed sequences. Random defines the following
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