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Questions and Answers
What is the purpose of using packages in Java?
What is the purpose of using packages in Java?
- Controlling the access level of classes
- Specifying the behavior of classes
- Defining interfaces for classes
- Managing and partitioning the class name space (correct)
How can you define a class as part of a package in Java?
How can you define a class as part of a package in Java?
- By starting the class with the 'package' keyword (correct)
- By ending the class with the 'package' keyword
- By importing the package at the end of the class
- By placing the class in a folder with the package name
Which access specifier allows access to members within the same package but not by subclasses?
Which access specifier allows access to members within the same package but not by subclasses?
- public
- private
- protected
- default (no specifier) (correct)
How can you bring a class from a specific package into visibility in your Java class?
How can you bring a class from a specific package into visibility in your Java class?
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What is the main purpose of an interface in Java?
What is the main purpose of an interface in Java?
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What is a key characteristic of interfaces in Java?
What is a key characteristic of interfaces in Java?
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How do classes implement an interface in Java?
How do classes implement an interface in Java?
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What is a requirement for a method declaration in an interface?
What is a requirement for a method declaration in an interface?
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Can a class implement multiple interfaces in Java?
Can a class implement multiple interfaces in Java?
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Are the variables declared in an interface mutable?
Are the variables declared in an interface mutable?
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