jniarraywrapper.java

java2高级教程大学教程的配套光盘源码

// JNIArrayWrapper.java
// Allows access to native methods

public class JNIArrayWrapper {

   // load library JNIArrayLibrary into JVM
   static {
      System.loadLibrary( "JNIArrayLibrary" );
   }

   // native c++ method
   public native int[] newRandomArray( int size );   

   // Java method that uses native method
   public void outputRandomNumbers( int amount ) 
   {
      int randomNumbers[] = newRandomArray( amount );   

      for ( int i = 0 ; i < amount ; i++ ) 
         System.out.println( randomNumbers[ i ] + 
            " random number " + i );
   }
}

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