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15 Cards in this Set
- Front
- Back
What is an expression
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Expression is a construct made up of variables, operators and method invocations.
E. constructed according JAVA syntax and evaluates to a single value |
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package
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Grouping of related types (classes, interfaces, enum and annotations) providing access protection
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import
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Enables the programmer to abbreviate the names of classes defined in a package
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class
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A type that defines the implementation of a particular kind of object.
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interface
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Used to declare a special type of class that only contains method signature and variable declarations
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extends
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Creates a subclass (a class that reuses functionality from a previously defined class)
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implements
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Reuses the functionality of the previously defined interface
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void
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Indicates that a method does not return a value
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super
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Refers to the superclass of the code in which the word super appears
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this
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A self-reference. Refers to the object in which the word this appears
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new
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Creates an object from an existing class
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return
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Ends execution of a method and possibly returns a value to the calling code
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assert
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Tests the truth of a condition that programmer believes that is true
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enum
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Declared enumerated type - a group of values
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instanceof
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Tests to see whether a certain object comes from a certain class
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