SwapElements

class Main {

public static void main(String[] args) {

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

int firstElement = elements[0];

int lastElement = elements[elements.length-1];

elements[0] = lastElement;

elements[elements.length-1] = firstElement; //the variable "firstElement" doesn't change, even after the actual first element was reassigned

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

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

}

}

}