JAVA

java convert array to another type

import java.util.Arrays;

int[] arr = {1, 2, 3, 4};

// convertions
Object[] a = Arrays.stream(arr).mapToObj(i -> i).toArray();
Double[] b = Arrays.stream(arr).mapToDouble(i -> i).toArray();
Long[] c = Arrays.stream(arr).mapToLong(i -> i).toArray();