java inter-process communication

Question

is it possible to use run a java class in command line to run a certain class or function in a running swing?

such as , when java Test asd will setText a running swing Jlabel to asd

• Jigar Joshi: It is doable but not a good design .
• Lukas Eder: @org.life.java: How do you know it's not a good design?
• Jigar Joshi: @Lukas Eder He tries to communicate between two process, that can be done by using some other technique also, what do you say
• wizztjh: It is a very sux idea , but I am lack of option because I am doing my final year project and my lecturer want me to use a proprietary software "vitamin d video" that do human detection and able to run a command line when detect one. So I need to show human activity in my java swing ...
• wizztjh: I don't have the hacking skill to understand the assembly code , so i just go with this method ....

Answer 1

The two programs run in separate processes. You will need to create an interface between the processes (or as Matthew put it: implement inter-process communication). There are millions of ways to achieve this, just to name a few:

• Create a file-based interface (Test will write into a file and JLabel will read that file)
• Create a TCP/IP connection between the two
• Create a HTTP connection between the two (JLabel may run a glassfish thread or something like that)
• Create a JMS connection
• Create an RMI method call
• Create a Webservice (again with JLabel running glassfish)
• Many more...

• Matthew Flaschen: You might want to add that this is called inter-process communication.

Answer 2

The most straight forward way is to create an RMI method call.

It's built into java from the beginning, reasonably simple and lightweight.