Core Java
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Search file in a zip file
This is an example of how to search a File in a zip file, using the ZipFile class. Searching a…
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List contents of zip file
In this example we shall show you how to get the list of the contents of a zip file, with…
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Calculate CRC-32 checksum of zip entry
With this example we are going to demonstrate how to calculate the CRC-32 checksum of a ZipEntry. In short, to…
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Get zip entry compression method
This is an example of how to get the ZipEntry Compression method. The compression method of a ZipEntry can be…
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Calculate CRC32 checksum for byte array
In this example we shall show you how to calculate the CRC32 Checksum of a byte array. To calculate the…
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Compress Objects example
With this example we are going to demonstrate how to compress and expand an Object. We have implemented the ObjectCompressionUtil…
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Compress – Decompress files example
This is an example of how to zip and unzip a file. We have implemented the FileCompressionUtil class, that consists…
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CountDownLatch example of a more general wait/notify mechanism
In this example we shall show you how to create a CountDownLatch of a more general wait/notify mechanism. We have…
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Synchronous Queue example to execute commands
private BlockingQueue workQueue = new LinkedBlockingQueue(); private Map commandQueueMap = new ConcurrentHashMap(); public SynchronousQueue addCommand(Command command) { SynchronousQueue queue =…
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Blocking Queue example of limited connection pool
private BlockingQueue<Connection> pool = new ArrayBlockingQueue<Connection>(10); private AtomicInteger connCount = new AtomicInteger(); public Connection getConnection() { Connection conn = pool.poll(5,…
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