12345。

If the array is out of range.

12。

12. Method。

Data types in Java are divided into basic data types and object data types. Among them, there are 8 basic data types, and the corresponding variables are called basic data type variables; Except for e

12。

Example：

Each subclass has certain attributes and methods, but there may be common attributes and methods among subclasses. By extracting all the commonalities of subclasses, the attributes and methods in the

1.super.2.super.3。

Error: Unable to instantiate.Example：