Javarevisited: The real difference between Process and Thread in Java

Javarevisited: The real difference between Process and Thread in Java

Menu The real difference between Process and Thread in Java One of the common question from programming interviews is, what is the difference between a Thread and a Process? Well, the main difference between them  is that a Process is a program which is executing some code and a thread is an independent path of execution inside the process. A process can have more than one thread for doing independent task e.g. a thread for reading data from disk, a thread for processing that data and another thread for sending that data over the network. This technique to improve throughput and better utilize CPU power is also known as multi-threading . Technically, most significant difference between thread is address space and context switching. All thread from a process share same address space but a process has their own address space. Similarly, context switching between process is more expensive than context switching between threads.

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