Transient: It is used in Java to indicate whether or not a variable is serialized. In Java, serialization is the process of storing an object’s state. All instance variables in the object are saved by default when we want to persist in the object’s state. In certain situations, we don’t need to send data over the network, therefore we don’t want to maintain a few variables. As a result, those variables are marked as transitory.
The variable will not be maintained if it is verified to be transitory. When dealing with an instance variable that will not be serialized, the transitory keyword is utilized. Because temporary variables are part of the instance variable, we can’t utilize static with them.
Volatile: In Java, the volatile keyword is used with just one variable, and it ensures that the volatile variable’s value is always read from the main memory rather than the thread’s local cache; it can be static.