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how many ways do two java program communicate?

 
Greenhorn
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the two java program run on the same machine which OS is unix
I just know socket can communicate,
does java has some ways like unix communicate on the same machine???
 
Marshal
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I have used two Java programs communicating via agents written in LISP. You can write data to a file in one JVM and read the file on another. There are bound to be many more ways.
Using a Unix-specific or LISP connection requires certain dependencies in the platform, so you lose independence.

Question too difficult for "beginning Java". Moving thread.
 
Ranch Hand
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JMS can be used,
And on linux may be named pipes- not sure about this.
 
Rancher
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web services

TCP/IP sockets

a database

email

...
 
lowercase baba
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Chrome Java Linux
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a text file...
 
Rancher
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RMI...

John.
 
Bartender
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Eclipse IDE Java
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Pigeons.
 
Consider Paul's rocket mass heater.
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