clone() and the Cloneable Interface in Java ...Theclone( )method generates a duplicate copy of the object on which it is called. Only classes that implement theCloneableinterface can be cloned. ...clone()产生了一个调用它的对象的复制;只有实现了Cloneable接口的类才可以被复制。 TheCloneableinterf...
JVM要直接支持，得在API里找地方来暴露出这个支持给Java代码调用才行啊。最直观的做法就是把clone()方...
The implementation of Cloneable interface in Java allows objects to be cloned, creating an exact copy of the original object. In this article, we will explore the concept of cloning and provide a step-by-step guide on how to use the Cloneable interface, with relevant code examples and explana...
*Cloneableinterface results in the exception *CloneNotSupportedExceptionbeing thrown. * * By convention, classes that implement this interface should override *Object.clone(which is protected) with a public method. * See {@link java.lang.Object#clone()} for details on overriding this * method. ...
* A class implements the Cloneable interface to * indicate to the {java.lang.Object#clone()} method that it * is legal for that method to make a * field-for-field copy of instances of that class. 翻译:实现了Cloneable接口的类,才表明了Object类的clone()方法可以合法地对当前类的实例进行按...
Prototype pattern is a kind of creative design pattern, which uses prototype objects to create new objects without coupling with the classes of specific objects. In the Java SDK, the implementation of the Prototype pattern mainly depends on the Cloneable interface and the clone() method. 1. Clon...
/*Cloneable接口源代码,JDK1.8*/publicinterfaceCloneable{} Cloneable接口之所以没有定义任何的接口的原因其实很简单,那就是在Java中,所有类的终极父类已经将clone()方法定义为所有类都应该具有的基本功能,只是将该方法声明为了protected类型。该方法定义了逐字段拷贝实例的操作。它是一个native本地方法,因此没有实现体...
package java.lang; 1. /** 1. * A class implements the Cloneable interface to 1. * indicate to the {@link java.lang.Object#clone()} method that it 1. * is legal for that method to make a 1. * field-for-field copy of instances of that class. 1. * 1. *...
* @see java.lang.Object#clone() * @since JDK1.0 */ publicinterfaceCloneable { } 不要惊讶,没错,除了一大堆的鸡肠以外,这个接口没有定义任何的方法签名。也就是说,我们要克隆一个对象,但是他又不给我提供一个方法。那该怎么办呢?不怕,我们还有全能的Object类,别忘记他可是所有类的始祖啊(神一般的存在...
Invoking Object's clone method on an instance that does not implement the Cloneable interface results in the exception CloneNotSupportedException being thrown. By convention, classes that implement this interface should override Object.clone (which is protected) with a public method. See Object.clone...