Abstract$2.$ ArrayList$5.$ Catch$6.$ Class$3.$ Autoboxing$/$Unboxing$7.$ Class Diagram$4.$ Cast$/$Casting$8.$ Dependency Inversion$9.$ DRY PrinciplePrinciple$13.$ Final$10.$ Encapsulation$11.$ Enum$12.$ Exception$17.$ Interface$14.$ Generic$18.$ Interface SegregationPrinciple$15.$ Getter$19.$ JavaDoc$16.$ Inheritance$20.$ JUnit$21.$ Liskov Substitution$22.$ Model$-$View$-$PrincipleController Pattern$23.$ Nested Class$24.$ Object$25.$ Open$/$Closed Principle$26.$ Overload$27.$ Override$28.$ Package$29.$ Polymorphism$30.$ Setter$31.$ Signature$32.$ Single ResponsibilityPrinciple$33.$ State Machine$34.$ Static$35.$ Subclass$36.$ Synchronized$37.$ This$38.$ Try$39.$ Unchecked$40.$ WrapperWhich of the following means the quality of variables, methods and classes that are associated with a class itself instead of an instance of the class