Switch Java sign constants

Author: dennisss

java/src/nz/ac/waikato/ffts/FFTS.java

@@ -66,11 +66,11 @@ private FFTS(long p, long inSize, long outSize) {
 	/**
 	 * The sign to use for a forward transform.
 	 */
-	public static final int FORWARD = 1;
+	public static final int FORWARD = -1;
 	/**
 	 * The sign to use for a backward transform.
 	 */
-	public static final int BACKWARD = -1;
+	public static final int BACKWARD = 1;
 
 	/**
 	 * Create a FFT plan for a 1-dimensional complex transform.