Why is it necessary to implement each and every method that is included in an interface when you are doing something as simple as implementing it?

What are some of the benefits that come with using a method that works in stages?

Which is NOT true of the decorator design pattern? It requires modification of the way an object is used It allows us to detach new methods to an object at runtime It allows us to attach new methods to an object at runtime It allows us to combine several features in a scaleable manner

create a simple game of your choice in java. Requirements must include: 1. There will need to be a game window implemented as a JFrame.2. Your game must provide instructions to the player.3. You must have at least two different visual elements (buttons, labels, text fields, etc.) – at a minimum!4. There must be a way for the user to interact with the game that causes some visual elements to change their appearance.For example, clicking on a button that represents a playing card could flip the card over to show its value, or correctlytyping in the answer to a riddle could cause a smiley face to appear.5. Your game should have some sort of score or goal. The level of success/total points should be displayed.6. Be sure to design your game using good object-oriented coding principles. Make appropriate use of collections like arrays or ArrayLists and loop over them to avoid unnecessary code repetition. If relevant, consider storing data needed by your game in a file so that it can be...

Why must you implement all interface methods?

what is the hardest about the autolayout system?