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Java的clone就是个坑？浅拷贝坑哭你，new才是真香

发布时间：2026/9/12 4:06:20

Java的clone就是个坑？浅拷贝坑哭你，new才是真香 于Java里头, Clone方法给用于去创建出一个对象的副本。而要是想要使用Clone方法的话, 那就得满足下面这两个条件才行。达成接口, 乃为一个予以标记的接口, 意味着此别类能够被实施克隆, 当中需要于描述类的部分进行补充添加。public class MyClass implements Cloneable { // 类的定义 }复刻clone方法: 于类里把clone方法再度编写, 以此返回一个克隆而成的对象, 在再度构建clone方法之际, 要借助super.clone() 将类的clone方法予以调用。public class MyClass implements Cloneable { // 类的定义 Override public Object clone() throws CloneNotSupportedException { return super.clone(); } }要使用clone方法, 那么能够借助调用克隆对象的clone方法, 以此来创建出一个新的副本对象。MyClass obj1 new MyClass(); MyClass obj2 (MyClass) obj1.clone();要留意的是, clone方法属于浅拷贝, 也就是仅仅复制对象的引用, 并非复制对象的内容倘若想要达成深拷贝, 也就是复制对象的内容, 能够在clone方法里针对对象的属性进行逐个逐一复制, 会在对对象, 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