@SuppressWarnings("unchecked")
    public T pop() throws EmptyStackException {
        int i;
        if ((i = --size) >= 0) {
            T element = (T) elements[i];
            elements[i] = null;
            return element;
        } else {
            size = 0;
            throw new EmptyStackException();
        }
    }
@SuppressWarnings("unchecked")
    public T pop() throws EmptyStackException {
        int i;
        if ((i = --size) >= 0) {
            T element = (T) elements[i];
            elements[i] = null;
            return element;
        } else {
            size = 0;
            throw new EmptyStackException();
        }
    }
@ SuppressWarnings ( "unchecked" ) public T pop ( ) throws EmptyStackException { int i ; if ( ( i = -- size ) >= 0 ) { T element = ( T ) elements [ i ] ; elements [ i ] = null ; return element ; } else { size = 0 ; throw new EmptyStackException ( ) ; } }
Removes the object at the top of this stack and returns that object as the value of this function.

@return The object at the top of this stack
@throws EmptyStackException - if this queue is empty
Removes the object at the top of this stack and returns that object as the value of this function .