JAVA

transform primitive float array to Float array

double[] primitives = new double[]{1.1, 1.2, 1.3, 1.4};

Double[] objects = Arrays.stream(primitives)
    .boxed()
    .toArray(Double[]::new);
Code language: Java (java)

int array to float array

>>> import numpy as np
>>> A = np.array((0.4, 1.6, 2.1, -3.7, 2.9))
>>> A
array([ 0.4,  1.6,  2.1, -3.7,  2.9])
>>> A = A.astype(int)
>>> A
array([ 0,  1,  2, -3,  2])