Java嵌套内部类访问外部类变量
发布时间:2020-12-14 16:32:35 所属栏目:Java 来源:网络整理
导读:嵌套的内部类ABar和BBar可以访问主类的变量吗?例如: public class Foo { public ABar abar = new ABar(); public BBar bbar = new BBar(); public int someCounter = 0; public class ABar { public int i = 0; public void someMethod(){ i++; someCounte
嵌套的内部类ABar和BBar可以访问主类的变量吗?例如:
public class Foo { public ABar abar = new ABar(); public BBar bbar = new BBar(); public int someCounter = 0; public class ABar { public int i = 0; public void someMethod(){ i++; someCounter++; } } public class BBar { public void anotherMethod(){ bbar.someMethod(); someCounter++; } } } // then called using: // Foo myFoo = new Foo(); myFoo.bbar.anotherMethod(); 编辑 看来我键入的代码会有效,如果我先尝试了它;试图得到帮助,而不是太具体.代码我实际上有麻烦 由于错误“无法使静态引用非静态字段”失败, public class Engine { public Stage stage = new Stage(); // ... public class Renderer implements GLSurfaceView.Renderer { // ... @Override public void onDrawFrame(GL10 gl) { stage.alpha++; } } public class Stage extends MovieClip { public float alpha = 0f; } 解决方法
在你的代码中,是的,这是可能的.
见:Nested Classes (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |