An interface is declared by using the interface keyword . It provides total abstraction; means all the methods in an interface are declared with the empty body, and all the fields are public, static and final by default. A class that implements an interface must implement all the methods declared in the interface.
Read moreHow do you define a class interface?
An interface is declared by using the interface keyword . It provides total abstraction; means all the methods in an interface are declared with the empty body, and all the fields are public, static and final by default. A class that implements an interface must implement all the methods declared in the interface.
Read moreHow do you identify a class interface?
Like a class, an interface can have methods and variables, but the methods declared in interface are by default abstract (only method signature, no body). Interfaces specify what a class must do and not how . It is the blueprint of the class.13 Tem 2021
Read moreDo you know some methods in object class?
int hashCode() – Used to get a hash code value for the object. void notify() – Used to wake up a single thread that is waiting on this object’s monitor. void notifyAll() – Used to wake up all threads that are waiting on this object’s monitor. String toString() – Used to get a string representation of the object.6 Şub 2018
Read moreHow many methods are available in object class?
There are 11 methods in Object class .
Read moreWhat are the methods of an object?
a method is an action which an object is able to perform . sending a message to an object means asking the object to execute or invoke one of its methods.
Read moreWhich are the methods of object class?
Methods of Object class MethodDescriptionpublic int hashCode()returns the hashcode number for this object.public boolean equals(Object obj)compares the given object to this object.protected Object clone() throws CloneNotSupportedExceptioncreates and returns the exact copy (clone) of this object.Java Object Class – Javatpoint www.javatpoint.com › object-class
Read more