Converting List<Long> to long[]

List input = getSomeLongs(); // Assume some values
long[] output = new long[input.size()];
int index = 0;
for(Long val : input) {
	indexess[index] =  val;
	index++;
} 

Converting long[] to List<Long>

long[] input = getSomeLongs(); // Assume some values
List output = new ArrayList();
for(long val : input){
	lst.add(val);
}

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