聚合 - 在另一个类的方法中检索另一个类实例变量 [英] Aggregation- retrieving another classes instance variable in a method of another class

问题描述

我查看了很多来源，但我无法想出如何检索另一个类实例变量以放入另一个类的方法，例如：

I have looked through many sources, but I am unable to come up with a solution as to how I would retrieve another classes instance variable to put in a method of another class for example:

public class Example{
    private ExampleTwo info;

    public void setInfo(int one, int two){   // i am trying to set the parameters so it can access the instance variable from ExampleTwo class

    }

}

public class ExampleTwo{
    private int one;
    private int two;

    //....rest of code

}

推荐答案

请记住，java没有像C＃这样的属性。所以你需要在这里玩一点有点棘手。采用属性风格。



当您想要访问私有的类变量时，请编写两个公共方法。请参阅以下示例

Remember, java does not have Property like C#. So you need to play a little tricky here. Adopt the property style.

When you want to access a class variable which is private, write two public methods. see the following example

class Two
{
private int var;

public int getVar()
{
return var;
}

public void setVar(int var)
{
this.var=var;
}
}

class One
{
Two objTwo=new Two();
public void oneMethod()
{
objTwo.setVar(30);
System.out.println(objTwo.getVar());

}
}

请妥善写下您的问题以获得适当的答案。希望这个例子可以帮助您理解您的问题。

Please write your question appropriately to get appropriate answer. Hope this example helps you understand your problem.

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