java how to reverse an array

1int length = array.length;
2		for(int i=0;i<length/2;i++) {
3			int swap = array[i];
4			array[i] = array[length-i-1];
5			array[length-i-1] = swap;
6		}
7or
8Collections.reverse(Arrays.asList(array)); 

1int length = array.length;
2		for(int i=0;i<length/2;i++) {
3			int swap = array[i];
4			array[i] = array[length-i-1];
5			array[length-i-1] = swap;
6		}

1public class ReverseArray {  
2    public static void main(String[] args) {  
3        //Initialize array  
4        int [] arr = new int [] {1, 2, 3, 4, 5};  
5        System.out.println("Original array: ");  
6        for (int i = 0; i < arr.length; i++) {  
7            System.out.print(arr[i] + " ");  
8        }  
9        System.out.println();  
10        System.out.println("Array in reverse order: ");  
11        //Loop through the array in reverse order  
12        for (int i = arr.length-1; i >= 0; i--) {  
13            System.out.print(arr[i] + " ");  
14        }  
15    }  
16} 

1// reverse array
2
3for(int i=intArray.length-1;i>=0;i--)
4         System.out.print(intArray[i] + "  ");