Have to throw out that disclosure ð. While there are a number of essential oils you can use for minor migraines and head pain, two of the top single oils are Peppermint and Lavender. Peppermint is effective for helping to relieve minor symptoms of those mind-numbing headaches that come from a variety of culprits.
An abstract class is like a class, but differs in that it only defines generic methods in the class, but does not actually implement them. Those methods will be implemented later by specialized sub-classes. This is how we get interfaces - interfaces are the implementation of the abstract class.
An interface in java is a blueprint of a class. It has static constants and abstract methods only.The interface in java is a mechanism to achieve fully abstraction. There can be only abstract methods in the java interface not method body. It is used to achieve fully abstraction and multiple inheritance in Java.An interface is a collection of abstract methods. A class implements an interface, thereby inheriting the abstract methods of the interface. An interface is not a class.n interface contains behaviors(Abstract Methods) that a class implements. Unless the class that implements the interface is abstract, all the methods of the interface need to be defined in the class.Since multiple inheritance is not allowed in java so interface is only way to implement multiple inheritance.