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...
*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. ...
* @see java.lang.Object#clone() */ public interface Cloneable { } 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〔神一般的存在着〕,所以,有...
/*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...
public interface Cloneable { } 1. 2. 3. 4. 5. 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,Object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。
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...
serves only to identify the semantics of that interface. Another example is Serializable . 2 object.clone()可能产生a shallow copy()也可能产生a deep copy 文章出处 : DIY 部落 (http://.diybl/course/3_program/java/javajs/20090923/176830.html)...
A class implements theCloneableinterface to indicate to theObject.clone()method that it is legal for that method to make a field-for-field copy of instances of that class. Invoking Object's clone method on an instance that does not implement theCloneableinterface results in the exceptionCloneNot...
"incorrect cloneable flag");}#endif// Check if class of obj supports the Cloneable interface.//...