如何将Object从java类传递到另一个java类 [英] How to pass Object from java class to another java class

问题描述

我在java中创建了一个类的实例，如下所示：

I created an instance of a class in java as following:

ABC ab = new ABC（）;

我想在另一个班级 XYZ ab $ C>。如何在XYZ类中使用此对象？

I want to access this instant ab in another class XYZ. How to make this Object available in class XYZ?

推荐答案

如果没有关于您的问题的更多具体信息，很难回答您的问题，但这肯定有用：

It is difficult to answer your question without more specific information about your problem, but this would certainly work:

如果要在其他类中使用它，可以使用setter初始化其他类中的实例变量：

You can use a setter to initialize an instance variable in your other class if you want to use it everywhere in that class:

class someClass {
   void someMethod() {
      ABC ab = new ABC();
      XYZ xyz = new XYZ();
      xyz.setABC(ab);
   }
}

class XYZ {
   ABC ab;
   //...
   void setABC(ABC ab) {
     this.ab = ab;
   }
   //...
   void doSomething() {
      // do something with instance variable ab
   } 
}

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