Type Comparison Operator
Java provides a run-time operator instanceof to compare a class and an instance of that class. This operator " instanceof" compares an object to a specified class type.
Datagram in network environment
In a network environment the client and the server communicate with each-other by reliable channel like TCP socket which have dedicated point-to-point channel between client and server.
The unary operators requires only one operand to perform different kind of operations such as increasing/decreasing a value, negating an expression, or inverting a boolean value.
Introduction to Java Mail API
The Java Mail API allows the developers to add mailing functionalities to their java applications. In this section we will introduce you with the Java Mail API.