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If in multiple inheritance, class C inherits class B, and Class B inherits class A. In which sequence are their destructors called if an object of class C was declared?
If class C inherits class B and class B inherits class A ________________
There are five classes class 1, class 2, class 3, class 4 and class 5 in a school. They are one above the other. Class 1 is at the bottom, then class 2 above it and so on. Five videos M1, M2, M3, M4 and M5 are displayed in these given classes. Only one video is displayed in a particular class. Each video is displayed only one time. Video M5 is displayed at an even numbered class. Video M2 is displayed at class 1. Video M1 is displayed at the class just below M5. Video M4 is not displayed at even numbered class. Which of the following statement is not correct?
If multi-level inheritance is used, First class B inherits class A, then C inherits B and so on. Till how many classes can this go on?
Which of the below statement is/are true about Error? A. An Error is a subclass of Throwable. B. An Error is a subclass of Exception. C. Error indicates serious problems that a reasonable application should not try to catch. D. An Error is a subclass of IOException.
Which of the below statement is/are true about Error?
A. An Error is a subclass of Throwable.
B. An Error is a subclass of Exception.
C. Error indicates serious problems that a reasonable application should not try to catch.
D. An Error is a subclass of IOException.
The class from which the child class inherits is called.
1. Child class
2. Parent class
3. Super class
4. Base class
When you extend a class, the subclass inherits all of the ........ methods from the parent class.
Which two classes use the Shape class correctly?
A. public class Circle implements Shape { private int radius; }B. public abstract class Circle extends Shape { private int radius; }C. public class Circle extends Shape { private int radius; public void draw(); }D. public abstract class Circle implements Shape { private int radius; public void draw(); }E. public class Circle extends Shape { private int radius; public void draw() { /* code here */ } }F. public abstract class Circle implements Shape { private int radius; public void draw() { /* code here */ } }
Which of the following is/are true for an abstract class? i) Abstract classes in PHP are declared with the help of abstract keyword. ii) A class is declare abstract by using the keyword implements. iii) It is a class that really isn’t supposed to ever be instantiated but instead serves as a base class. iv) Attempting to instantiate an abstract class results in an error.