Author Question: What is the output of running class Test?public class Test { public static void main(String[] args) ... (Read 103 times)

Mr3Hunna · **on:** May 6, 2020

Question 1

Suppose A is an abstract class, B is a concrete subclass of A, and both A and B have a default constructor. Which of the following is correct?
◦ B b = new A();
◦ A a = new A();
◦ A a = new B();
◦ B b = new B();

Question 2

What is the output of running class Test?

public class Test {
public static void main(String[] args) {

new Circle9();

}
}

public abstract class GeometricObject {
protected GeometricObject() {

System.out.print("A");

}

protected GeometricObject(String color, boolean filled) {

System.out.print("B");

}
}

public class Circle9 extends GeometricObject {
/** Default constructor */
public Circle9() {

this(1.0);

System.out.print("C");

}

/** Construct circle with a specified radius */
public Circle9(double radius) {

this(radius, "white", false);

System.out.print("D");

}

/** Construct a circle with specified radius, filled, and color */
public Circle9(double radius, String color, boolean filled) {

super(color, filled);

System.out.print("E");

}
}

◦ ABCD
◦ BACD
◦ BEDC
◦ CBAE
◦ AEDC

gabrielle_lawrence · **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 39% of students answer this correctly