Example in javafile

InterfaceToCJNI.java

// Java package
package com.github.vgoni; 

// Imports
import android.util.Log;

public final class InterfaceToCJNI 
{
	// Load Native C/C++ Libraries
	// =========================================================================
	static 
	{
		try
		{
			Log.v("InterfaceToCJNI", "Loading cpplibrary.so");
			System.loadLibrary("cpplibrary");
		}
		catch (UnsatisfiedLinkError use) 
		{
			Log.e("InterfaceToCJNI", "WARNING: Could not load cpplibrary");
			Log.e("InterfaceToCJNI", use.getMessage());
		}
	}
    // Static native functions
    // =========================================================================
	  public static native void start(String sessionID);
	  public static native void update(String data);
	  public static native void shutdown(int signal);
}