public class reverseArray {

public static void main(String[] args) {

int arr[] = { 5, 4, 3, 2, 1};

int n=arr.length;

int p1=0;

int p2=n-1;

while(p1<p2){

int temp=arr[p1];

arr[p1]=arr[p2];

arr[p2]=temp;

p1++;

p2--;

}

for(int i=0;i<n;i++){

System.out.print(arr[i]+" ");

}

}

}