从不同包中的不同类访问变量? [英] Access variable from a different class in a different package?

问题描述

我想要设置它，以便每个igCharacter的igAS将受igMech中的变量限制. 这是我所拥有的 首先:

I want to set it so igAS for each igCharacter will be limited by a variable in igMech. Here is what I have first :

    package igCharacters;
    import igMech.*;
    protected class igBrand {
            public double igAS = .77;
    }

秒:

    package igMech;
    class igLimits {
            double aSLimit = 2.5
    }

推荐答案

我认为您可能想使用public修饰符(尽管很难说出问题的意思) .您使用的是默认值，它是包专用的(即，不能从包igMech之外的任何类访问).使用public意味着可以从任何程序包中看到一个类.

I think you might want to use the public modifier (although it's quite hard to tell what you mean from your question). You are using default, which is package-private (i.e. not accessible from any class outside the package igMech). Using public means a class is visible from any package.

package igCharacters;
import igMech.*;
protected class igBrand {
  public double igAS = .77;
}

package igMech;
public class igLimits { // now visible from the igCharacters package
  public double aSLimit = 2.5
}

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