code: public static LongBinding floorMod(final ObservableLongValue x, final ObservableLongValue y) {
          return createLongBinding(() -> Math.floorMod(x.get(), y.get()), x, y);
      }
docs: Binding for {@link java.lang.Math#floorMod(long, long)}
  
  @param x the dividend
  @param y the divisor
  @return the floor modulus {@code x - (floorDiv(x, y) * y)}
  @throws ArithmeticException if the divisor {@code y} is zero