/**
* Function for clearing attached loggers - how the logs are actually cleared is up to the logger
* implementation
*/
private void clearLog() {
for (CalculatorLogger l : loggers) {
l.clear();
}
}
/**
* Logging function - outputs operation info as it happens to any and all registered loggers
*
* @param str any string
*/
private void log(String str) {
for (CalculatorLogger l : loggers) {
l.log(str);
}
}