import java.util.*;
 
class Example {
    public static void main(String[] args) {
        int[] arr = {1, 2, 3};
        int[] rev = reversing(arr);
        System.out.println(Arrays.toString(rev));
    }
 
    public static int []reversing(int[] array){
        int arraysize = array.length;
        int[] reverse = new int [arraysize+1];
        for(int i=1; i <= arraysize ; i++){
            int dec= arraysize -i;
            reverse[i] = array[dec];
        }
        return reverse;
    }
}

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