//With Commons.Lang, you could simply use
ArrayUtils.reverse(int[] array)
// For reversing subarray
ArrayUtils.reverse(int[] array,int startIndexInclusive, int endIndexExclusive)
int[] xr = {1, 2, 3, 4, 5};
System.out.print("[");
for (int i = xr.length - 1; i >= 0; i--) {
System.out.print(xr[i] + ", ");
}
System.out.println("\b\b]");
}// my linkedin : https://www.linkedin.com/in/vaalarivan-prasanna-3a07bb203/
list = new ArrayList<int> {3, 4, 7}; //initialising a list
Collections.reverse(list); //reverses a List or an ArrayList
//now, list is {7, 4, 3}
import java.util.*;
import java.util.stream.Collectors;
int[] array = new int[] {23, 54, 12};
List<Integer> list = Arrays.stream(array).boxed().collect(Collectors.toList());
Collections.reverse(list);
array = list.stream().mapToInt(x -> x).toArray();
//array = [12,54,23]public void reverse()
{
for (int i = 0; i < size/2; i++)
{
int temp = get(i);
elementData[i] = elementData[size-i-1];
elementData[size-i-1] = temp;
}
}WWWWW-
S---W-
W-W-W-
W-W---
E-W-W-
WWWWW-