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# Java的Deep vs Shallow Copies怎么理解## 目录1.[引言](#引言)2.[基本概念](#基本概念)-[什么是对象拷贝](#什么是对象拷贝)-[Shallow Copy浅拷贝](#shallow-copy浅拷贝)-[Deep Copy深拷贝](#deep-copy深拷贝)3.[实现方式对比](#实现方式对比)-[浅拷贝的实现](#浅拷贝的实现)-[深拷贝的实现](#深...
所以对于case1的话，你改变一下line1内部的东西，如果你发现line2内部相应的东西也改变了，那就是shallow copy，如果不变的话，就是deep copy。对于case2的话，如果equals method只是比对一下数值的话，它就是一个shallow reference comparision，deep comparision的话，应该还比对一下数值的地址。
Java中实现对象clone的方式是implements Cloneable interface,然后在实现类中重写Object clone()方法.在Java中默认的是"shallow copy", 所以如果类的attribute中含有对象,并且希望实现"deep copy",就要将所涉及的类都 implements Cloneable and Serial ...
浅拷贝和深拷贝深入理解(shallow copy VS deep copy) 引言C#中有两种类型变量,一种 是值类型变量,一种是引用类型变量,对于值类型变量,深拷贝和前拷贝都是通过赋值操作符号(=)实现,其效果一致,将对象中的值类型的字段拷贝到新的对象中.这个很容易理解。 本文重点讨论引用类型变量的拷贝机制和实现。 C#中引用类型...
Cloning, shallow copy and deep copy in Java are the ways of copying the attributes of one object into another of same type. Cloning, and shallow copy in Java are the same things. Java provides a clone method that copies the attributes of one object into another using shallow copy. Cloning...
2. Creating a Deep Copy of Array In deep copying, new instances of the array items are created,so any change to the original array does not reflect on the copied array.In-memory serializationis a shortcut approach for creating deep copies of an object in Java. ...
Shallow copy vs. Deep copy vs. Lazy copy https://www.cs.utexas.edu/~scottm/cs307/handouts/deepCopying.htm When creating copies of arrays or objects one can make a deep copy or a shallow copy. This explanation uses arrays. Recall array variables in Java are references or pointers. A sha...
Shallow copy is a simple and efficient process. Java provides a default implementation of shallow copy through theclone()method. What to remember about deep copy A deep copy creates a new object and also creates new copies of its internal objects. ...
Shallow copy vs. Deep copy vs. Lazy copy When creating copies of arrays or objects one can make a deep copy or a shallow copy. This explanation uses arrays. Recall array variables in Java are references or pointers. A shallow copy can be made by simply copying the reference....