類型簽名（Type Signatures）

??? (<Parameter 1 Type Code>[<Parameter 1 Class>];...)<Return Type Code>

The JNI uses the Java VM’s representation of type signatures. Following Table shows these type signatures.

Type Signature	Java Type
Z	booleab
B	byte
C	char
S	short
I	int
J	long
F	float
D	double
L full-qualified-class	full-qualified-class
[type	type[]
(arg-types)ret-type	method type

For example, the Java method:

??? long f (int n, String s, int[] arr);

has the following type signature:

??? (ILjava/lang/String;[I)J

轉載于:https://www.cnblogs.com/dyingbleed/archive/2012/10/11/2720180.html

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