public class Main {

public static void main(String[] args){

//test

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

int rcv[] = reverseArray(arr);

for(int i=0; i<rcv.length; i++){

System.out.println(rcv[i]);

}

}

//reverse array without cloning

public static int[] reverseArray(int array[]){

int temp = 0;

for(int i=0; i<array.length/2; i++){

temp = array[i];

array[i]=array[array.length-1-i];

array[array.length-1-i]=temp;

}

return array;

}

}