The print statement
The print statement writes textual messages followed by a newline to the correlator's standard output stream — stdout. The expression you print must be of type string.
For example:
print "Your message here.";
This EPL statement produces output that looks like this:
Your message here.
The print statement is less useful for reporting diagnostic information than the log statement, as it does not contain any information about the time or origin of the message, and cannot be turned off by changing the log level.
For more detailed information, see
Logging and printing.