Comparable & Comparator
While writing the object-oriented programs, comparison of two instances of the same class is often required. Once instances are comparable, we can sort them ...
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Configuring Preconditions
You have two independent tables having no relationship between them, but you still want to create them in specific orders. To enforce order during the creati...
Java Serialization & Deserialization
Serialization lets you simply say “save this object state to the persistent store” you’d have to use one of the I/O classes to write out the state of the ins...
Java Formatters
Like all byte and character stream objects, instances of PrintStream and PrintWriter implement a standard set of write methods for simple byte and character ...
File Object
Objects of type File are used to represent the actual files (but not the data in the files) or directories that exist on a computer’s physical disk. First, l...