OPOSSUMS ARE MARSUPIALS. If you open just about any field guide to North American mammals, the opossum will probably be the very first of the 380 or so mammal species described. That's because opossums are our only marsupial, and marsupials are considered very ancient forms of mammals.
operator - an agent that operates some apparatus or machine; the operator of the switchboard. manipulator. causal agency, causal agent, cause - any entity that produces an effect or is responsible for events or results. company operator - an operator who works for a company. driver - the operator of a motor vehicle.
What is a Java Operator. A Java operator is the symbol that you put in the conditional statements of your control structures (for the most part). There are other examples of when you could use certain Java operators, but Iâll touch on those at the end of this Java tutorial. So, for the example above, the operator we are using is the âless thanâ operator (<).