如何使用 JAVA 中的静态 class 访问私有内部 class 的私有参数化方法

Question

如何从 main 方法访问 Inner class 的 getMeSomething 方法？我所需要的只是能够发送一个整数并在 main 方法中获取返回值。

public class OuterClass {
   public static void main(String[] args) {
    //Using Java Reflection...I tried to create an inner class Object
    //created a outer class object
    //and invoke the method without any success
   }

  static class Inner {
     private class Private {
        private int getMeSomething(int num) {
            return (num*2);
        }
     }
  }//end of inner class
} //end of outer class

Answer 1

您需要一个 Inner 实例和一个 Private 实例：

      public static void main(String[] args) {
        //Using Java Reflection...I tried to create an inner class Object
        //created a outer class object
        //and invoke the method without any success
               Private p = new Inner ().new Private ();
           System.out.println(""+p.getMeSomething(21));
       }

如何使用 JAVA 中的静态 class 访问私有内部 class 的私有参数化方法

How to Access private parameterized method of private inner class with in a static class in JAVA

java

reflection

inner-classes