¿Qué interfaz se utiliza para la clonación de objetos en Java?

Which interface is used for object cloning in Java?

java.lang.Cloneable interface
The clone() method of Object class is used to clone an object. The java.lang.Cloneable interface must be implemented by the class whose object clone we want to create.

Cloneable is an interface that is used to create the exact copy of an object. It exists in java. lang package. A class must implement the Cloneable interface if we want to create the clone of the class object.

Types of Cloning

• Shallow Cloning. This is the default cloning strategy provided by Object. clone(), which we have seen.
• Deep Cloning. As the name suggests, deep cloning means copying everything from one object to another object. To achieve this, we will need to trick our clone() method provide our own cloning strategy.

A serializable interface is used to persist an object. The cloneable interface is used to clone the class objects. Both these interfaces are marker interfaces i.e. they are empty. But when a class implements them, then they indicate that the compiler can expect some special behavior from the classes implementing them.

Cloneable interface is implemented by a class to make Object. clone() method valid thereby making field-for-field copy. This interface allows the implementing class to have its objects to be cloned instead of using a new operator.

Clone is Protected method in Object class so it is accessible to you inside class. About access- When a method is protected, it can only be accessed by the class itself, subclasses of the class, or classes in the same package as the class.

The method is protected because you shouldn’t call it on object, you can (and should) override it as public. In class Object, the clone() method is declared protected. If all you do is implement Cloneable, only subclasses and members of the same package will be able to invoke clone() on the object.

Interfaces in Java’s standard class library. As a naming convention, many interfaces in Java’s standard class library end with the able suffix. Examples include Callable, Cloneable, Comparable, Formattable, Iterable, Runnable, Serializable, and Transferable.

Empty interfaces are used to document that the classes that implement a given interface have a certain behaviour. For example in java the Cloneable interface in Java is an empty interface. When a class implements the Cloneable interface you know that you can call run the clone() on it.

There is no automatic way to copy any given object in Java. Copying is usually performed by a clone() method of a class. This method usually, in turn, calls the clone() method of its parent class to obtain a copy, and then does any custom copying procedures.

An interface in the Java programming language is an abstract type that is used to specify a behavior that classes must implement. They are similar to protocols. Interfaces are declared using the interface keyword, and may only contain method signature and constant declarations (variable declarations that are declared to be both static and final).