java native modifier
1. "native" is a modifier applicable only for methods and we cannot apply anywhere else. 2. The methods which are implemented in non-java (C or C++) are called native methods. 3. The main objective of native modifier are:-
- Improve performance of the system.
- To achieve machine level or memory level communication.
- To use already existing legacy (non-java) code.
4.For the native method, implementation is already available in the old language like C, C++ and we are not responsible for providing implementation hence native method declaration should end with ";" semicolon.
public native void m1( ); Valid
public native void m1( ) { }; Invalid
5.The main advantage of the native keyword performance will be improved but the main disadvantage of the native keyword is "It breaks the platform independent nature of Java".
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