如何使用適當的64位整數類型聲明ARRAY_SIZE的arr1

Question

public class Sorting {static final String {IN_FILE =「sorting.txt」; static final int ARRAY_SIZE = 20000;

static public void main(String[] args) { 

    int[] arr1= new int [ARRAY_SIZE]; 

Answer 1

long是，簽署，補整數。

long[] arr1= new long [ARRAY_SIZE];