t the correct answerWhat does an interface contain?OptionsMethod definitionMethod declaration and definitionMethod declarationMethod name

To answer the question regarding what an interface contains, let's analyze the options provided.

Understanding Interfaces in Programming

1. Method Definition: This refers to the body and implementation of a method. Interfaces do not contain method definitions; they only provide method declarations.
2. Method Declaration and Definition: An interface does not include definitions; it solely includes declarations.
3. Method Declaration: This is a valid aspect of interfaces. An interface contains method declarations that specify the method's signature without providing implementation.
4. Method Name: While methods in interfaces do have names, this term is too vague as it does not specify that these are part of a declaration.

Correct Answer

From the analysis above, the correct choice regarding what an interface contains is:

Method declaration.

Interfaces are designed to specify what methods a class must implement, rather than how they should be implemented. Therefore, they typically include method declarations only.