nhanb

import java.awt.Color;

public class MovingRectangle {
    
    /**
     * method: showAnimation
     * This method shows an animation in which a rectangle moves around, inside and close to
     * the edges of an open window.
     * Eveytime the rectangle changes the moving direction, its color is changed
     * to the next color in the specified array. If there is no more color in the array,