27 inner classes

Methods inner classes, members of inner classes, static inner classes, anonymous inner classes

1. Method inner class

public  class the Person { 
    
    public  static  void main (String [] args) {
         // . inside the object is to call the external object method --- (); in the class object to create an internal process, and to call the class object through the inside of the internal with method 
        
     new new OUT () m ();. 
    } 
} 
class OUT {
     int B = 0 ;
     public  void n-() {
         Final  int K2 = 10 ; 
        m (); // n-m calling method 
    }
     public  void m () {
         int K = 10; // in jdk1.7 and to be explicitly indicates that the former is a constant (to add final), is explicitly constant
         //It is implicit and after jdk1.8 constant (as long as the definition of a variable is constant), when the inner class is used to constant
         // Method inner class 
        / ** 1. only non-static definition of the properties and methods 
         * 2 .final methods and properties can also be modified 
         * 3. statically defined constants (static Final) 
         * 4. able to be outside all the attributes and methods of the class 
         * 5. the method may get inside this class contain constants, variables declared at this time also implicitly converted into constant (plus the final) 
         * 6. can inherit from other classes 
         * 7. shall not be allowed access modifiers before the inner class, only add final or abstract (abstract) 
         * 8. how create an object inside the class? Still other methods can not be created inside the class object, this method can only be created within 
         * 9 other method is to first call within the internal object --- external object method ();.. Create an internal class object in the method, and invokes properties and methods by inner class internal class object 
         * / 
        
          class Inner1 the extends Object {
             static  Final  int A = 2 ; 

            void M2 () {
                 //You can get property methods of the class external 
                System.out.println (B);
                 // 
                // can get method constant 
                System.out.println (k);
                 //   k =. 11; // here being given as k is an implicit constant, can not be modified
                 // not get contains no constant process this inner class
                 // System.out.println (K2); 
          
            } // endm2 () 

        } // End inner class
           // create internal class object 
          Inner1 = Nei new new Inner1 (); 
          nei.m2 (); // method inner class calls 
    } // ENDM () 
} // endout class

 

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Origin www.cnblogs.com/xuwangqi/p/11105796.html