内部类怎么调用主类的同名函数

内部类如何调用主类的同名函数？
内部类如何调用主类的同名函数？

Java code

class A{    public void getA(){}        class B{        public void getA(){            //这里如何调用主类的getA()？        }    }}

Java code

/** * Created by IntelliJ IDEA. * User: gaoyong * Date: 2011-10-11 * Time: 18:23:13 * To change this template use File | Settings | File Templates. */public class A{    public void getA(){        System.out.println("主类getA()方法");    }    class B{        public void getA(){            System.out.println("内部类调用getA()方法");            A.this.getA();        }    }    public static void main(String[] args) {        A a=new A();        a.new B().getA();    }}