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Easy Learn Java: Programming Articles, Examples and Tips - Page 59


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What is Java Space technology?

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Question: What is Java Space technology?

Answer: Describing shortly Java Space technology it is importantant from the beginning to say that,  Javaspace technology is based on a new model of computation called the tuplespace model and aims to overcome some of the key difficulties related to Client-Server communication.

The dominant model of computation in distributed computing is the Client-Server model.This model is based on the assumption that local procedure calls are the same as remote procedure calls.

Javaspaces overcome the problems of synchronization, latency and partial failure, inherent in distributed systems, by providing loosely coupled interactions between the components of distributed systems.

Javaspace processes communicate through a space, not than directly. Communication between processes on different physical machines is asynchronous and free from the main limitation of the traditional client/server model, when client/server communication requires simultaneous presence on network both parts - client and server.

JavaSpace technology. Sender and receiver in Java Space don't need to be synchronized and can interact when network is available...

In a distributed application, JavaSpaces technology acts as a virtual space between providers and requestors of network resources or objects. This allows participants in a distributed solution to exchange tasks, requests, and information in the form of Java technology-based objects.



12 comments | Printer Friendly Page  Send to a Friend | Score: 4
Posted by jalex on Monday, July 07, 2003 (00:00:00) (4949 reads)

Is there any way in Java we can view the bytecodes generated by a piece of code?

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Question: Is there any way in Java to view the bytecode generated by a piece of code?

Answer: The intermediate representation of Java code is named bytecode. Like assembler is the intermediate representation of C/C++ programs, Java's representation is bytecode.

Bytecode is generated according to JLS - Java Language Specification. It is simple and stright forward code. So simple that it is possible with Java decompiler programs get back Java code Smile

Run this command in directory where you have your MyClass.class file and you get bytecode:
javap -c -classpath . MyClass



37 comments | Printer Friendly Page  Send to a Friend | Score: 0
Posted by jalex on Friday, July 04, 2003 (00:00:00) (2732 reads)

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