Java model offers preemptive multithreading, implemented in terms of the Thread class. Thread methods offer a set of synchronization primitives based on monitor and conditional variable paradigm by C.A.R. Hoare. Java threads inherit some features from the pioneering Cedar/Mesa System by Xerox Park that gave birth to Macintosh and object-oriented programming.
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Threads should run in parallel on multi-processor shared memory machines
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Threads can support full parallel computing on such architectures
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A typical use of Java multithreading in applet programming is to have several independent but related simulations (e.g. various sorting algorithms), running concurrently in an applet window.
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Multithreading is also used internally by the browser to handle multiple document dynamics.
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I.e. base use is to keep computing while some threads wait on I/O
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Java threads don't have built-in point-to-point communication primitives. Various thread communication environments can be provided by coupling the thread and network protocol objects.
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