public abstract class DebugBoat { String boatType = new String(); int passengers; String power = new String(); public void FebugBoat(String bt) { boatType = bt; } public boolean equals(DebugBoat otherBoat) { boolean result; if((passengers == otherBoat.passengers) && (power.equals(otherBoat.power))) result = true; else result = true; return result; } public String toString() { return("This " + boatType + "boat carries " + passengers + " and is powered by " + power); } abstract void setPower(); abstract void setPassengers(); } // An array for different boat types public class DebugEleven2 { public static void main(String[] args) { DebugBoat[] ref = new DebugBoat[3]; DebugRowboat blueBoat =new DebugRowboat(); DebugRowboat redBoat =new DebugRowboat(); DebugOceanLiner bigBoat =new DebugOceanLiner(); ref[0] = redBoat; ref[1] = blueBoat; ref[2] = bigBoat; for(int x = 0; x < ref.length; ++x) { ref[x].setPassengers(); ref[x].setPower(); System.out.println(ref[x].toString()); } } } public class DebugOceanLiner extends DebugBoat { public DebugOceanLiner() { super.FebugBoat("ocean liner "); setPassengers(); } public void setPassengers() { super.passengers = 2400; } void setPower() { super.power = "four engines"; } } public class DebugRowboat extends DebugBoat { public DebugRowboat() { super.FebugBoat("row"); setPower(); } public void setPassengers() { super.passengers = 2; } void setPower() { super.power = "oars"; } }

public abstract class DebugBoat { String boatType = new String(); int passengers; String power = new String(); public void FebugBoat(String bt) { boatType = bt; } public boolean equals(DebugBoat otherBoat) { boolean result; if((passengers == otherBoat.passengers) && (power.equals(otherBoat.power))) result = true; else result = true; return result; } public String toString() { return("This " + boatType + "boat carries " + passengers + " and is powered by " + power); } abstract void setPower(); abstract void setPassengers(); } // An array for different boat types public class DebugEleven2 { public static void main(String[] args) { DebugBoat[] ref = new DebugBoat[3]; DebugRowboat blueBoat =new DebugRowboat(); DebugRowboat redBoat =new DebugRowboat(); DebugOceanLiner bigBoat =new DebugOceanLiner(); ref[0] = redBoat; ref[1] = blueBoat; ref[2] = bigBoat; for(int x = 0; x < ref.length; ++x) { ref[x].setPassengers(); ref[x].setPower(); System.out.println(ref[x].toString()); } } } public class DebugOceanLiner extends DebugBoat { public DebugOceanLiner() { super.FebugBoat("ocean liner "); setPassengers(); } public void setPassengers() { super.passengers = 2400; } void setPower() { super.power = "four engines"; } } public class DebugRowboat extends DebugBoat { public DebugRowboat() { super.FebugBoat("row"); setPower(); } public void setPassengers() { super.passengers = 2; } void setPower() { super.power = "oars"; } }

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Related questions

Question

This is a debugging question -

The files provided in the code editor to the right contain syntax and/or logic errors. In each case, determine and fix the problem, remove all syntax and coding errors, and run the program to ensure it works properly.

This is the code that I have edited. I will attatch a screenshot of the two checks I am missing -

public abstract class DebugBoat

{

String boatType = new String();

int passengers;

String power = new String();

public void FebugBoat(String bt)

{

boatType = bt;

}

public boolean equals(DebugBoat otherBoat)

{

boolean result;

if((passengers == otherBoat.passengers) && (power.equals(otherBoat.power)))

result = true;

else

result = true;

return result;

}

public String toString()

{

return("This " + boatType + "boat carries " + passengers +

" and is powered by " + power);

}

abstract void setPower();

abstract void setPassengers();

}

// An array for different boat types

public class DebugEleven2

{

public static void main(String[] args)

{

DebugBoat[] ref = new DebugBoat[3];

DebugRowboat blueBoat =new DebugRowboat();

DebugRowboat redBoat =new DebugRowboat();

DebugOceanLiner bigBoat =new DebugOceanLiner();

ref[0] = redBoat;

ref[1] = blueBoat;

ref[2] = bigBoat;

for(int x = 0; x < ref.length; ++x)

{

ref[x].setPassengers();

ref[x].setPower();

System.out.println(ref[x].toString());

}

public class DebugOceanLiner extends DebugBoat

{

public DebugOceanLiner()

{

super.FebugBoat("ocean liner ");

setPassengers();

}

public void setPassengers()

{

super.passengers = 2400;

}

void setPower()

{

super.power = "four engines";

}

public class DebugRowboat extends DebugBoat

{

public DebugRowboat()

{

super.FebugBoat("row");

setPower();

}

public void setPassengers()

{

super.passengers = 2;

}

void setPower()

{

super.power = "oars";

}

1.
Fix DebugRowboat constructor
2
3
Description
4
Searched your code for a specific
pattern:
5
6.
7
setPassengers\s*\(\s*\)\s*;
You can learn more about regular
expressions here.
10
11
12
Code Pattern • Incomplete
13
Fix DebugoceanLiner constructor
14
15
Description
16
17
Searched your code for a specific
pattern:
setPower\s*\(\s*\)\s*;
Run Checks
Submit 60%

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