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Author Question: What is the output of running class Test?public class Test { public static void main(String[] args) ... (Read 95 times)

Mr3Hunna

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  • Posts: 536

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


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Marked as best answer by Mr3Hunna on May 6, 2020

gabrielle_lawrence

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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.
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Mr3Hunna

  • Member
  • Posts: 536
Reply 2 on: May 6, 2020
YES! Correct, THANKS for helping me on my review


connor417

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Wow, this really help

 

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