class cloneClass implements Cloneable{
int x=0;
int y=9;
protected void protectedMethod()
{
  System.out.println("calling ProtectedMethod");
}
Object getObj() throws CloneNotSupportedException
{
  return clone();
}
}
class extendProtectedClass extends cloneClass{
  
}
public class Test{
public static void main(String [] args){
  cloneClass cl=new cloneClass();
  try{
  cloneClass cl2=(cloneClass)cl.clone();//通过cl.clone()条用Object.clone()方法出错
  System.out.println(cl2.x);
  }catch(CloneNotSupportedException ex){
   ex.printStackTrace();
  }
  /*extendProtectedClass ep=new extendProtectedClass();
  ep.protectedMethod();    //可以通过子类的对象直接调用父类的保护方法protectedMethod()
  */
}
}

class cloneClass implements Cloneable{
int x=0;
int y=9;
protected void protectedMethod()
{
  System.out.println("calling ProtectedMethod");
}
Object getObj() throws CloneNotSupportedException
{
  return clone();
}
}
class extendProtectedClass extends cloneClass{
  
}
public class Test{
public static void main(String [] args){
  cloneClass cl=new cloneClass();
  try{
  cloneClass cl2=(cloneClass)cl.clone();//通过cl.clone()条用Object.clone()方法出错
  System.out.println(cl2.x);
  }catch(CloneNotSupportedException ex){
   ex.printStackTrace();
  }
  /*extendProtectedClass ep=new extendProtectedClass();
  ep.protectedMethod();    //可以通过子类的对象直接调用父类的保护方法protectedMethod()
  */
}
}