android/guava/src/com/google/common/primitives/Doubles.java
public static void reverse(double[] array, int fromIndex, int toIndex) {
    checkNotNull(array);
    checkPositionIndexes(fromIndex, toIndex, array.length);
    for (int i = fromIndex, j = toIndex - 1; i < j; i++, j--) {
      double tmp = array[i];
      array[i] = array[j];
      array[j] = tmp;
    }
  }
public static void reverse(double[] array, int fromIndex, int toIndex) {
    checkNotNull(array);
    checkPositionIndexes(fromIndex, toIndex, array.length);
    for (int i = fromIndex, j = toIndex - 1; i < j; i++, j--) {
      double tmp = array[i];
      array[i] = array[j];
      array[j] = tmp;
    }
  }
public static void reverse ( double [ ] array , int fromIndex , int toIndex ) { checkNotNull ( array ) ; checkPositionIndexes ( fromIndex , toIndex , array . length ) ; for ( int i = fromIndex , j = toIndex - 1 ; i < j ; i ++ , j -- ) { double tmp = array [ i ] ; array [ i ] = array [ j ] ; array [ j ] = tmp ; } }
Reverses the elements of {@code array} between {@code fromIndex} inclusive and {@code toIndex}
exclusive. This is equivalent to {@code
Collections.reverse(Doubles.asList(array).subList(fromIndex, toIndex))}, but is likely to be
more efficient.

@throws IndexOutOfBoundsException if {@code fromIndex < 0}, {@code toIndex > array.length}, or
{@code toIndex > fromIndex}
@since 23.1
Reverses the elements of { @code array } between { @code fromIndex } inclusive and { @code toIndex } exclusive . This is equivalent to { @code Collections . reverse ( Doubles . asList ( array ) . subList ( fromIndex toIndex )) } but is likely to be more efficient .