A Barbershop Quartet is a group of four singers: a lead, a tenor, a bass, and a baritone. These four singers harmonize to produce a purely American form of music developed in the 19th century. Consider the incomplete class definitions below. public class BarberShopQuartet { public BarberShopQuartet() { Tenor highSinger = new Tenor(); Baritone bari = new Baritone(); Lead melody = new Lead(); Bass lowSinger = new Bass(); System.out.println(“Quartet created.”); } } ______________________________________________________________________________ public class Singer { public Singer() { System.out.println(“Singing...”); } } ______________________________________________________________________________ public class Tenor extends Singer { public Tenor() { System.out.println(“Singing...the high notes”); } } ______________________________________________________________________________ public class Baritone extends Singer { public Baritone() { System.out.println(“Singing...harmonizing with the lead”); } } ______________________________________________________________________________ public class Lead extends Singer { public Lead() { System.out.println(“Singing...the melody and providing the emotion”); } } ______________________________________________________________________________ public class Bass extends Singer { public Bass() { System.out.println(“Singing...the very low notes”); } } What output would be produced if the following code was executed? BarberShopQuartet fourSingers = new BarberShopQuartet(); System.out.println(“This quartet is on stage!”); A. Quartet created. This quartet is on stage! B. Singing... Singing...the high notes Singing... Singing…harmonizing with the lead Singing... Singing…the melody and providing the emotion Singing... Singing…the very low notes Quartet created. This quartet is on stage! C. Singing...the high notes Singing…harmonizing with the lead Singing…the melody and providing the emotion Singing…the very low notes This quartet is on stage! D. This quartet is on stage! E. Singing...the high notes Singing…harmonizing with the lead Singing…the melody and providing the emotion Singing…the very low notes Quartet created. This quartet is on stage!
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:
A Barbershop Quartet is a group of four singers: a lead, a tenor, a bass, and a baritone. These four singers harmonize to produce a purely American form of music developed in the 19th century. Consider the incomplete class definitions below.
public class BarberShopQuartet
{
public BarberShopQuartet()
{
Tenor highSinger = new Tenor();
Baritone bari = new Baritone();
Lead melody = new Lead();
Bass lowSinger = new Bass();
System.out.println(“Quartet created.”);
}
}
______________________________________________________________________________
public class Singer
{
public Singer()
{
System.out.println(“Singing...”);
}
}
______________________________________________________________________________
public class Tenor extends Singer
{
public Tenor()
{
System.out.println(“Singing...the high notes”);
}
}
______________________________________________________________________________
public class Baritone extends Singer
{
public Baritone()
{
System.out.println(“Singing...harmonizing with the lead”);
}
}
______________________________________________________________________________
public class Lead extends Singer
{
public Lead()
{
System.out.println(“Singing...the melody and providing the
emotion”);
}
}
______________________________________________________________________________
public class Bass extends Singer
{
public Bass()
{
System.out.println(“Singing...the very low notes”);
}
}
What output would be produced if the following code was executed?
BarberShopQuartet fourSingers = new BarberShopQuartet();
System.out.println(“This quartet is on stage!”);
| A. |
Quartet created. This quartet is on stage! |
|
| B. |
Singing... Singing...the high notes Singing... Singing…harmonizing with the lead Singing... Singing…the melody and providing the emotion Singing... Singing…the very low notes Quartet created. This quartet is on stage! |
|
| C. |
Singing...the high notes Singing…harmonizing with the lead Singing…the melody and providing the emotion Singing…the very low notes This quartet is on stage! |
|
| D. |
This quartet is on stage! |
|
| E. |
Singing...the high notes Singing…harmonizing with the lead Singing…the melody and providing the emotion Singing…the very low notes Quartet created. This quartet is on stage! |
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