public class Outer
     {
        public void inner(){
            final int num = 5;
            class InnerClass{
                private int num = 4;
                public void testNum(){
                    System.out.println(this.num);
                }
            }
        }
     }

问题来了,如何在内部类的testNum方法中调用到外部方法中的num变量?

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