Question

I have

long [] data and i need to convert it to ArrayList<BigInteger>

Is there an easy way to do this? or i have to write a foreach loop and get the BigInteger value of long and add to the list?

Any shortcut?

Answer 1

As @jb-nizet (JB Nizet) said, there are no shortcuts to this task.
And here is the 3 lines of code to “convert” a long[] in a List

long[] data = { 1l, 3l, 5l, 7l, 13l, 17l};
// 3 lines to convert long[] in a List<BigInteger>
List<BigInteger> list = new ArrayList<BigInteger>(data.length); // optmized as suggested
for(long num : data)
    list.add(BigInteger.valueOf(num));