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Class B
from class:
AP Computer Science A
Definition
Class B is a Java class that extends another class (Class A) and contains its own methods and/or fields in addition to those inherited from Class A.
"Class B" also found in:
Practice Questions (6)
- If Class C is a superclass of Class B and a subclass of Class A, which of the following is NOT valid?
- Suppose class A is the superclass of class B and class C, and it is also the subclass of class D. If we have a method that takes in an object of class A, which of the following objects would we also be able to pass in to the method?
- If class C is class B's superclass and class A is class C's superclass, what are the appropriate class headers for each of the three classes?
- Consider the code below. If we create an object of the B class and call the `printMessage()` method on that object, what will be the output?
```java
class B {
void printMessage() {
super.printMessage();
System.out.println("Hello from B");
}
}
class A extends B {
void printMessage() {
System.out.println("Hello from A");
}
}
```
- If Class D extends Class B, and Class C extends Class D, what is the relationship between Class C and Class B?
- In a Java program, Class A and Class B are defined such that both have a method named methodOne() with different implementations, and Class C inherits from both Class A and Class B. If we create an object of Class C and call methodOne(), which version of methodOne() will be called?
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