import  java.io.*;

 class  A  implements  Serializable {
	 private   void  writeObject(ObjectOutputStream out){
		System.out.println("A.writeObject()");
	}
	 private   void  readObject(ObjectInputStream in){
		System.out.println("A.readObject()");
	}
}

 public   class  test {
	 public   static   void  main(String[] args)  throws  Exception {
		A a= new  A();
		ObjectOutputStream out= new  ObjectOutputStream( new  FileOutputStream("a.out"));
		ObjectInputStream in= new  ObjectInputStream( new  FileInputStream("a.out"));
		out.writeObject(a);
		in.readObject();
	}
}

 import  java.io.*;
 import  java.lang.*;
 import  java.lang.reflect.*;

 class  A {
         private   void  XMethod() {System.out.println("private A.XMethod()");}
}

 public   class  testX {
	 public   static   void  main(String[] args)  throws  Exception {
		A a= new  A();
		 Class  ac=a.getClass();
		Method wrOb=ac.getDeclaredMethod("XMethod");
		wrOb.setAccessible(true);
		wrOb.invoke(a);
	}
}