a new string is created and emp name reference is changed inthis.name = name;.Hence clonedEmp name remains unchanged. You will find similar behavior for any primitive variable types too. So we are good with java
Then thereason why you are getting the above compiler error is that you have not followed either 1 or both of the basic required steps for cloning an object in Java, which are- STEP 1- The class of the object being cloned should implementjava.lang.Cloneableinterface. ...
clone方法是浅拷贝,不是深拷贝; The class {@code Object} does not itself implement the interface {@code Cloneable}, so calling the {@code clone} method on an object whose class is {@code Object} will result in throwing an exception at run time. Object类 自身没有实现Cloneable,所以调用Object...
* primitive fields or references to immutable objects, then it is usually * the case that no fields in the object returned by {@codesuper.clone} * need to be modified. * <p> * The method {@codeclone} for class {@codeObject} performs a * specific cloning operation. First, if the cl...
Java Object finalize() 方法 Java Object 类 Java Object 类是所有类的父类,也就是说 Java 的所有类都继承了 Object,子类可以使用 Object 的所有方法。Object充分体现了面向对象继承的使用!Object 类位于 java.lang 包中,编译时会自动导入,我们创建一个类时,如果没有明确继承一个父类,那么它就会自动继承 Objec...
在Java中,Object类是一个非常重要的类,它是Java中“单根结构”特点的重要体现;从API帮助文档中可以了解到类Objecct是类层次结构的根。当一个类如果没有明确的显示继承一个类(可以理解为该类名后面没有跟上extends关键字,参考代码1.1),则该类默认以Object作为超类(父类或基类)。所有对象(包括数组)都实现此类的方...
* an execution of a Java application, the {@code hashCode} method * must consistently return the same integer, provided no information * used in {@code equals} comparisons on the object is modified. * This integer need not remain consistent from one execution of an ...
Java object cloningusingcopy constructorsanddefensive copy methodscertainly have some advantages but we have to explicitly write some code to achieve deep cloning in all these approaches. And still, there are chances that we might miss something and do not get deeply cloned object. ...
描述(Description) clone()方法用于返回此TreeSet实例的浅表副本。 声明 (Declaration) 以下是java.util.TreeSet.clone()方法的声明。 public Object…
TOP Rated Guide To Java Object Cloning Back to course page Download The Object clone() Method (Article) The Object clone() Method Introduction In this article from my free Java 8 course, I will be discussing the Java Object clone() method. The clone() method is defined in class Object...