Author Question: Given the following classes and their objects:class C1 {};class C2 extends C1 {};class C3 extends C1 ... (Read 149 times)

Pineapplelove6 · **on:** May 6, 2020

Question 1

Analyze the following code:

Circle c = new Circle (5);
Cylinder c = cy;

◦ The code has a runtime error.
◦ The code has a compile error.
◦ The code is fine.

Question 2

Given the following classes and their objects:

class C1 {};
class C2 extends C1 {};
class C3 extends C1 {};

C2 c2 = new C2();
C3 c3 = new C3();

Analyze the following statement:

c2 = (C2)((C1)c3);

◦ c3 is cast into c2 successfully.
◦ You will get a runtime error because the Java runtime system cannot perform multiple casting in nested form.
◦ You will get a runtime error because you cannot cast objects from sibling classes.
◦ The statement is correct.

onowka · **Reply #1 on:** May 6, 2020

A FREE account is required to view all solutions!

Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.

Answer Preview

Only 64% of students answer this correctly