Method nextDouble

lib/java/util/Random.java:139–141

Generates a normally distributed random double number between 0.0 inclusively and 1.0 exclusively. @return a random double in the range [0.0 - 1.0) @see #nextFloat

()

     * @see #nextFloat
     */
    public double nextDouble() {
        return ((((long) next(26) << 27) + next(27)) / (double) (1L << 53));
    }

    /**
     * Generates a normally distributed random {@code float} number between 0.0