Java中数组的成员

Array Members

The members of an array type are all of the following:

• The public final field length, which contains the number of components

of the array (length may be positive or zero).

• The public method clone, which overrides the method of the same name in

class Object and throws no checked exceptions. The return type of the clone

method of an array type T[] is T[].

• All the members inherited from class Object; the only method of Object that is not inherited is its clone method.

An array thus has the same public fields and methods as the following class:

     class A implements Cloneable, java.io.Serializable {

        public final int length = X;

        public T[] clone() {

           try {

              return (T[])super.clone(); // unchecked warning

           } catch (CloneNotSupportedException e) {

              throw new InternalError(e.getMessage());

           }

        }

     }