ref: JNI type
The mapping between the Java type and C type is:
| Type Signature | Java Type |
|---|---|
| Z | boolean |
| B | byte |
| C | char |
| D | double |
| F | float |
| I | short |
| J | long |
| L | object |
| S | short |
| V | void |
| Lfully-qualified-class; | fully-qualified-class |
| [type | array of type[] |
原文：http://www.cnblogs.com/listened/p/3747920.html