8 The answer is false: a class cannot inherit constructors 9 Overriding a method means to replace an inherited method with another method that provides the same signature and the same return type but provides a new implementation
bbm A F
is/are false statements A final class cannot be inherited Which cannot be inherited from a base class in Java programming Which are true statements about an interface in java? False statement about final method in java A Value of
B.Sc . IT UIT JAVA PROGRAMMING
Different classes may have some common properties and behaviors 11 public Circle4(double radius, String color, boolean filled) A Java class may inherit directly from only one Like an instance method, a static method can be inherited
CSW Lec Inheritance&Polymorphism
Rectangle Inheritance - idea Use extends keyword to tell that one class inherits from public boolean isFilled; super can be used to call method from superclass public static void main(String[] args) { A a = new A(); a p(10); } } class B {
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test is supplied with a mock test key to let you verify the final score and grade yourself Q 7 - What is the default value of Boolean variable? A - true A - Variables, methods and constructors which are declared public can be accessed by any class C - inheritance is a technique to define different methods of same type
java mock test ii
D) ensure that the class can not throw a NullPointerException 8) Java does not support multiple inheritance, but some of the abilities of multiple inheritance
Review for Chapter Test
All abstract, default, and static methods in an interface are implicitly public, so you A class implementing an interface can implement additional methods • A class can implement several interfaces Java lacks multiple inheritance, but there is an alternative boolean isAmateur( ): Does this athlete have amateur status?
interfaces
inheritance without the potential confusion of multiple bases classes having conflicts All abstract, default, and static methods in an interface are implicitly • public, so many classes can implement the same interface 23 A True B False
interfaces
20 jan 2006 · OOP: True or False The “is-a” relation is implemented by inheritance A variable of a class may be assigned an object from any of its
OOPTrueFalseSmall