Before you run any sample programs, you should start the broker. You can display output describing the command-line options for each program by starting the program with the -help option.
For example, the following command, runs the program Producer. It specifies that the program should connect to the broker running on the host MyHost and port 8585, and that it should send a message to the destination My Topic :
Producer -h MyHost -p 8585 -d MyTopic
The directories that contain the sample programs also include a README file that explains how you should run their respective samples.