java 显式参数隐式参数_Java中的隐式参数

偏执的太偏执、 2022-12-06 15:39 145阅读 0赞

java 显式参数隐式参数

The implicit parameter in [Java][] is the object that the method belongs to. It's passed by specifying the reference or variable of the object before the name of the method. An implicit parameter is opposite to an *explicit *[parameter][], which is passed when specifying the parameter in the parenthesis of a method call. If a parameter isn't explicitly defined, the parameter is considered implicit.

[Java中][Java]的隐式参数是该方法所属的对象。 通过在方法名称之前指定对象的引用或变量来传递它。 隐式参数是相反的*明确* [参数][parameter] ，它规定在一个方法调用的括号中的参数时被传递。 如果未明确定义参数，则该参数被认为是隐式的。

## 显式方法示例 **(** Explicit Method Example **)** ##

When your program calls a method of an object, it's common to pass a value to the method. For example, here, the object *Employee* has a method called *setJobTitle*:

当程序调用对象的方法时，通常将值传递给该方法。 例如，在这里，对象*Employee*有一个名为*setJobTitle*的方法：

Employee dave = new Employee(); dave.setJobTitle("Candlest

The String "Candlestick Maker" is an *explicit* parameter being passed to the *setJobTitle* method.

字符串“ Candlestick Maker”是一个*显式*参数，将传递给*setJobTitle*方法。

## 隐式方法示例 **(** Implicit Method Example **)** ##

However, there is another parameter in the method call that is known as the *implicit* parameter. The implicit parameter is the object the method belongs to. In the above example, it's *dave*, the object of type *Employee*.

但是，方法调用中还有另一个参数，称为*隐式*参数。 隐式参数是该方法所属的对象。 在上面的示例中，它是*dave* ，即*Employee*类型的对象。

Implicit parameters are not defined within a method declaration because they are implied by the class the method is in:

隐式参数未在方法声明中定义，因为方法所在的类隐含了它们：

public class Employee {  public void setJobTitle(String jobTitle)  {    this.jobTitle =

In order to call the *setJobTitle* method, there must be an object of type *Employee*.

为了调用*setJobTitle*方法，必须有一个类型为*Employee*的对象。

> 翻译自: [https://www.thoughtco.com/implicit-parameter-2034139][https_www.thoughtco.com_implicit-parameter-2034139]

java 显式参数隐式参数

[Java]: https://www.thoughtco.com/what-is-java-2034117
[parameter]: https://www.thoughtco.com/parameter-2034268
[https_www.thoughtco.com_implicit-parameter-2034139]: https://www.thoughtco.com/implicit-parameter-2034139