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15 Cards in this Set

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