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Related Flashcards
Cards In This Set
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A ___________ is a template for multiple objects with similar features and it is a blueprint for objects.
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Class
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A _______________ is a special type of method that determines how an object is initialized when it is created.
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Constructor
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An ____________ is an instance of a class and it is a software unit that combines a structured set of data with a set of operations for inspecting and manipulating that data
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Object
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The default visibility modifier for class methods and instance variables is _______________ .
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Protected
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___________________, also called information hiding, is the packing of data and functions into a single component and keeps both safe from outside interference and misuse.
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Encapsulation
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What are the 4 different visibility modifiers?
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Public, package-private, private, protected
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A _____________ instance variable can only be accessed and used within the class in which it is declared.
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Private
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__________________ is where two methods in a class have the same method name with different parameters/arguments.
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Method overloading
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If the name of your Java class is Banana, what is the name of your constructor?
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Banana
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__________ and _________ are methods that are used to retrieve and modify private instance variables.
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Getters (aka accessors), Setters (aka mutators)
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True or False? If you create a constructor in a class, Java will create the default, no-arg constructor for you.
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False. If you have not created a constructor, Java will create one for you. However, if you created a constructor (it doesn't matter which if it is the default or not), Java will not create one for you.
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The _______ keyword is used to refer to the current object.
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This
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A ___________ instance variable can be access from any other class or classes in different packages.
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Public
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A _________ instance variable can only be accessed in classes that live in the same package.
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Protected
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What are the differences between a constructor and a method?
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Constructors do not have return types. Constructors must have the same name of the class. A constructor will be automatically invoked when an object is created, whereas method has to be called explicitly using the dot operator.
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