What is the concept of jni in java

Explanation

1. The main functions of jni. Starting from jdk1.1, the jni standard has become part of the java platform. It provides a series of APIs that allow java and other languages. Interact and realize calling functions of other languages ​​in java code.

2. Normally we use jni to call code in c or c.

Example

public class JniTest {
    static{
        System.loadLibrary("MyNativeDll");
    }
 
    public static native void callCppMethod();
 
    public static void main(String[] args) {
        System.out.println("DLL path:"+System.getProperty("java.library.path"));
        callCppMethod();
    }
}

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