Why must all of the interface's methods be implemented when an interface is implemented?
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Why must all of the interface's methods be implemented when an interface is implemented?
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- What is the benefit of interfaces? why not just instanciate objects of a class directly?When performing something as basic as implementing an interface, why is it essential to implement each and every function that is contained in the interface?What are the advantages of interfaces?Why not just instanciate class objects directly?
- How can interfaces be used to implement design patterns such as the Strategy pattern or Observer pattern?Interfaces provide what advantages? Why not simply construct an object of a certain type?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?
- When a class implements an interface with default methods and overrides them, the class inherits the default methods’ implementations. An interface’s designer can now evolve an interface by adding new default and static methods without breaking existing code that implements the interface. State whether the statement is true or false. If false, explain why.True or False An interface must be instantiated before it can be used.In what ways do interfaces benefit the user?Instead than using class objects, why not create them directly?