What are some characteristics of interference class?
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Answer / Ram Niwas Paswan
1. An interface is an abstract type that is completely composed of abstract methods, constants, and possibly default methods introduced in Java 8.
2. Interfaces cannot be instantiated; they can only be implemented by classes or extended by other interfaces.
3. Multiple classes can implement the same interface.
4. An interface declares a contract that the implementing class must adhere to.
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