java - What is port name of Raspberry pi3? -


i want send string "*" arduino. have java project. , working on computer. (i defined port name "com3")

but after load project raspberry pi3, , tried send "*", fails. please @ code. problem simple, what must write instead of com3 control rasberry pi 3 usb port 

serialport seri=new serialport("com3"); private void btnbaslatactionperformed(java.awt.event.actionevent evt) {                                                        seri.openport();              seri.setparams(9600, 8, 1,0);              seri.writestring("*");      }


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