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As an aid to understanding the ConstantClass, it is useful to organize the its methods into two large categories according to their expected use--the primary interface and the virtual methods. This organization reflects what we believe is typical use of the ConstantClass methods.

**Non-Virtual Methods**

The Non-Virtual Methods, which you are likely to call fairly routinely from your program, can be further divided into three categories:

**Housekeeping (one-time) Use:**

|  | Init | initialize the ConstantClass object |
|  | AddItem | set constant datatype and target variable |
|  | Set | set the constant data to process |
|  | Kill | shut down the ConstantClass object |

**Mainstream Use:**

|  | Next | copy one or all constant items to targets |

**Occasional Use:**

|  | Reset | reset the object to beginning of the constant data |

**Virtual Methods**

The ConstantClass has no virtual methods.