java convert array to another type

The solution for this is noted below

java convert array to another type

Solution

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();

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