Testat01(11:20)

import java.util.Arrays;
public class Testat01 {
    public static int[] berechne(int[] arr){
       int a = arr[0];
        for(int i = 0; i<arr.length-1; i++){
           if(arr.length % 2 == 0 || arr.length == 0){
               arr[i] = arr[i];
           }else{
               arr[0] = a;
               arr[arr.length-1] *= 1;
               arr[i] = arr[arr.length/2];
            }
        }
        return arr;
    }
    public static void main(String[] args){
         int b[] = {-5,4,7,8,1,5,9};
         System.out.println(Arrays.toString(berechne(b)));
    }
}