Use the following partial class definitions to answer the questions a-c public class A1 { public int x; private int y; protected int z; ... } public class A2 extends A1 { protected int a; private int b; ... } public class A3 extends A2 { private int q; ... } a) Which of the following is true with respect to A1, A2 and A3? Group of answer choices A1 is a subclass of A2 and A2 is a subclass of A3 A3 is a subclass of A2 and A2 is a subclass of A1 A1 and A2 are both subclasses of A3 A2 and A3 are both subclasses of A1 A1, A2 and A3 are all subclasses of the class A b) Which of the following lists of instance data are accessible in class A2? A) B) C) D) E) Group of answer choices x, y, z, a, b x, y, z, a x, z, a, b z, a, b a, b c) Which of the following lists of instance data are accessible in A3? Group of answer choices x, y, z, a, b, q a, b, q a, q x, z, a, q x, a, q
OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
Use the following partial class definitions to answer the questions a-c
public class A1
{
public int x;
private int y;
protected int z;
...
}
public class A2 extends A1
{
protected int a;
private int b;
...
}
public class A3 extends A2
{
private int q;
...
}
- a) Which of the following is true with respect to A1, A2 and A3?
Group of answer choices
A1 is a subclass of A2 and A2 is a subclass of A3
A3 is a subclass of A2 and A2 is a subclass of A1
A1 and A2 are both subclasses of A3
A2 and A3 are both subclasses of A1
A1, A2 and A3 are all subclasses of the class A
- b) Which of the following lists of instance data are accessible in class A2?
- A)
- B)
- C)
- D)
- E)
Group of answer choices
x, y, z, a, b
x, y, z, a
x, z, a, b
z, a, b
a, b
- c) Which of the following lists of instance data are accessible in A3?
Group of answer choices
x, y, z, a, b, q
a, b, q
a, q
x, z, a, q
x, a, q
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