scala中对象私有数据

Scala案例对象与对象 (Scala case object vs object)

1)对象 (1) object)

An object is an instance of a class, it can also be seen as a class that has only a single instance. Like class, you can create fields and methods for object too. Example,

对象是类的实例，也可以将其视为仅具有单个实例的类。 像类一样，您也可以为对象创建字段和方法。 例，

object Myclass{        def add();    }

2)案例对象 (2) case object)

case object is just like an object but with some added features and attributes. It can be seen as a blend of case class ( the defined for adapting to changes) and object. It is created with a modifier case. Example,

case对象就像一个对象，但是具有一些附加的功能和属性。 可以将其看作是案例类(为适应更改而定义的)和对象的混合体。 它是使用修饰符案例创建的。 例，

case object a {		    //definition.     }

Main features of Scala case object are,

Scala案例对象的主要特征是：

• It is implemented as hash code by default.

  默认情况下，它实现为哈希码。

• It is serializable.

  它是可序列化的。

The case objects are compatibility with pattern matching in Scala.

案例对象与Scala中的模式匹配兼容。

案例对象和Scala中的对象之间的区别 (Difference between case object and object in Scala )

These are the following things that make a case object special,

以下是使case对象与众不同的以下几点：

• It is implemented as hash-code by default.

  默认情况下，它实现为哈希码。

• Serializability of case objects.

  案例对象的可序列化性。

• It has support for pattern matching.

  它支持模式匹配。

• By default implementation in tostring.

  默认情况下在tostring中实现。

These special types of object are created to imply some added features to the general object making it usage special.

创建这些特殊类型的对象是为了暗示对常规对象的某些附加功能，从而使其用途特殊。

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scala中对象私有数据