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Select the correct statement among the given statements?
- a)One class could implement only one interface
- b)Properties could be declared inside an interface
- c)Interfaces cannot be inherited
- d)None of the mentioned
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Select the correct statement among the given statements?a)One class co...
Properties could be declared inside an interface
Explanation:
Interfaces:
An interface is a collection of abstract methods (without implementation) and constants. It is used to achieve abstraction and multiple inheritance in Java. In other words, an interface is like a blueprint of a class. It defines the methods and variables that a class must implement.
Implementing an Interface:
To implement an interface in a class, we use the keyword "implements" followed by the interface name. A class can implement multiple interfaces.
Properties:
Properties are variables that are declared inside a class. They are used to store values or data that are associated with an object of the class.
Properties in Interfaces:
In Java, properties can also be declared inside an interface. These properties are by default public, static, and final. They can be accessed using the interface name followed by the property name.
Conclusion:
Hence, the correct statement among the given statements is "Properties could be declared inside an interface".
Explanation:
Interfaces:
An interface is a collection of abstract methods (without implementation) and constants. It is used to achieve abstraction and multiple inheritance in Java. In other words, an interface is like a blueprint of a class. It defines the methods and variables that a class must implement.
Implementing an Interface:
To implement an interface in a class, we use the keyword "implements" followed by the interface name. A class can implement multiple interfaces.
Properties:
Properties are variables that are declared inside a class. They are used to store values or data that are associated with an object of the class.
Properties in Interfaces:
In Java, properties can also be declared inside an interface. These properties are by default public, static, and final. They can be accessed using the interface name followed by the property name.
Conclusion:
Hence, the correct statement among the given statements is "Properties could be declared inside an interface".
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Community Answer
Select the correct statement among the given statements?a)One class co...
Defining the property as you've shown is the same as defining methods int GetProperty() and void SetProperty(int i). Properties are powerful short-hand in C#.
A property does not implicitly create a private field in C#. That is the default implementation of an auto-property, for example public string MyString { get; set;} - however, a property which defines custom logic in the get method does not generate an implicit private field.
Lastly, as interfaces are concerned with public API, what would it matter if the implementation of an interface property relied on a private field - implicit or otherwise? That is hidden from consumers of the interface regardless.
A property does not implicitly create a private field in C#. That is the default implementation of an auto-property, for example public string MyString { get; set;} - however, a property which defines custom logic in the get method does not generate an implicit private field.
Lastly, as interfaces are concerned with public API, what would it matter if the implementation of an interface property relied on a private field - implicit or otherwise? That is hidden from consumers of the interface regardless.
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Select the correct statement among the given statements?a)One class could implement only one interfaceb)Properties could be declared inside an interfacec)Interfaces cannot be inheritedd)None of the mentionedCorrect answer is option 'B'. Can you explain this answer?
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