Use Java. Given main() and the Instrument class, define a derived class, StringInstrument, for string instruments. Ex. If the input is: Drums Zildjian 2015 2500 Guitar Gibson 2002 1200 6 19 the output is: Instrument Information: Name: Drums Manufacturer: Zildjian Year built: 2015 Cost: 2500 Instrument Information: Name: Guitar Manufacturer: Gibson Year built: 2002 Cost: 1200 Number of strings: 6 Number of frets: 19 import java.util.Scanner; public class InstrumentInformation { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); Instrument myInstrument = new Instrument(); StringInstrument myStringInstrument = new StringInstrument(); String instrumentName, manufacturerName, stringInstrumentName, stringManufacturer; int yearBuilt, cost, stringYearBuilt, stringCost, numStrings, numFrets; instrumentName = scnr.nextLine(); manufacturerName = scnr.nextLine(); yearBuilt = scnr.nextInt(); scnr.nextLine(); cost = scnr.nextInt(); scnr.nextLine(); stringInstrumentName = scnr.nextLine(); stringManufacturer = scnr.nextLine(); stringYearBuilt = scnr.nextInt(); stringCost = scnr.nextInt(); numStrings = scnr.nextInt(); numFrets = scnr.nextInt(); myInstrument.setName(instrumentName); myInstrument.setManufacturer(manufacturerName); myInstrument.setYearBuilt(yearBuilt); myInstrument.setCost(cost); myInstrument.printInfo(); myStringInstrument.setName(stringInstrumentName); myStringInstrument.setManufacturer(stringManufacturer); myStringInstrument.setYearBuilt(stringYearBuilt); myStringInstrument.setCost(stringCost); myStringInstrument.setNumOfStrings(numStrings); myStringInstrument.setNumOfFrets(numFrets); myStringInstrument.printInfo(); System.out.println(" Number of strings: " + myStringInstrument.getNumOfStrings()); System.out.println(" Number of frets: " + myStringInstrument.getNumOfFrets()); } } public class Instrument { protected String instrumentName; protected String instrumentManufacturer; protected int yearBuilt, cost; public void setName(String userName) { instrumentName = userName; } public String getName() { return instrumentName; } public void setManufacturer(String userManufacturer) { instrumentManufacturer = userManufacturer; } public String getManufacturer(){ return instrumentManufacturer; } public void setYearBuilt(int userYearBuilt) { yearBuilt = userYearBuilt; } public int getYearBuilt() { return yearBuilt; } public void setCost(int userCost) { cost = userCost; } public int getCost() { return cost; } public void printInfo() { System.out.println("Instrument Information: "); System.out.println(" Name: " + instrumentName); System.out.println(" Manufacturer: " + instrumentManufacturer); System.out.println(" Year built: " + yearBuilt); System.out.println(" Cost: " + cost); } } // TODO: Define a class: StringInstrument that is derived from the Instrument classpublic class StringInstrument extends Instrument { // TODO: Declare private fields: numStrings, numFrets /*answer here/* // TODO: Define mutator methods - // setNumOfStrings(), setNumOfFrets() /*answer here/* // TODO: Define accessor methods - // getNumOfStrings(), getNumOfFrets() /*answer here/* }

Use Java. Given main() and the Instrument class, define a derived class, StringInstrument, for string instruments. Ex. If the input is: Drums Zildjian 2015 2500 Guitar Gibson 2002 1200 6 19 the output is: Instrument Information: Name: Drums Manufacturer: Zildjian Year built: 2015 Cost: 2500 Instrument Information: Name: Guitar Manufacturer: Gibson Year built: 2002 Cost: 1200 Number of strings: 6 Number of frets: 19 import java.util.Scanner; public class InstrumentInformation { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); Instrument myInstrument = new Instrument(); StringInstrument myStringInstrument = new StringInstrument(); String instrumentName, manufacturerName, stringInstrumentName, stringManufacturer; int yearBuilt, cost, stringYearBuilt, stringCost, numStrings, numFrets; instrumentName = scnr.nextLine(); manufacturerName = scnr.nextLine(); yearBuilt = scnr.nextInt(); scnr.nextLine(); cost = scnr.nextInt(); scnr.nextLine(); stringInstrumentName = scnr.nextLine(); stringManufacturer = scnr.nextLine(); stringYearBuilt = scnr.nextInt(); stringCost = scnr.nextInt(); numStrings = scnr.nextInt(); numFrets = scnr.nextInt(); myInstrument.setName(instrumentName); myInstrument.setManufacturer(manufacturerName); myInstrument.setYearBuilt(yearBuilt); myInstrument.setCost(cost); myInstrument.printInfo(); myStringInstrument.setName(stringInstrumentName); myStringInstrument.setManufacturer(stringManufacturer); myStringInstrument.setYearBuilt(stringYearBuilt); myStringInstrument.setCost(stringCost); myStringInstrument.setNumOfStrings(numStrings); myStringInstrument.setNumOfFrets(numFrets); myStringInstrument.printInfo(); System.out.println(" Number of strings: " + myStringInstrument.getNumOfStrings()); System.out.println(" Number of frets: " + myStringInstrument.getNumOfFrets()); } } public class Instrument { protected String instrumentName; protected String instrumentManufacturer; protected int yearBuilt, cost; public void setName(String userName) { instrumentName = userName; } public String getName() { return instrumentName; } public void setManufacturer(String userManufacturer) { instrumentManufacturer = userManufacturer; } public String getManufacturer(){ return instrumentManufacturer; } public void setYearBuilt(int userYearBuilt) { yearBuilt = userYearBuilt; } public int getYearBuilt() { return yearBuilt; } public void setCost(int userCost) { cost = userCost; } public int getCost() { return cost; } public void printInfo() { System.out.println("Instrument Information: "); System.out.println(" Name: " + instrumentName); System.out.println(" Manufacturer: " + instrumentManufacturer); System.out.println(" Year built: " + yearBuilt); System.out.println(" Cost: " + cost); } } // TODO: Define a class: StringInstrument that is derived from the Instrument classpublic class StringInstrument extends Instrument { // TODO: Declare private fields: numStrings, numFrets /answer here/ // TODO: Define mutator methods - // setNumOfStrings(), setNumOfFrets() /answer here/ // TODO: Define accessor methods - // getNumOfStrings(), getNumOfFrets() /answer here/ }

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

See similar textbooks

8.7 LAB: Instrument information (derived classes)

Use Java.

Given main() and the Instrument class, define a derived class, StringInstrument, for string instruments.

Ex. If the input is:

Drums

Zildjian

2015

2500

Guitar

Gibson

2002

1200

the output is:

Instrument Information:

Name: Drums

Manufacturer: Zildjian

Year built: 2015

Cost: 2500

Instrument Information:

Name: Guitar

Manufacturer: Gibson

Year built: 2002

Cost: 1200

Number of strings: 6

Number of frets: 19

import java.util.Scanner;

public class InstrumentInformation {
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);

Instrument myInstrument = new Instrument();
StringInstrument myStringInstrument = new StringInstrument();

String instrumentName, manufacturerName, stringInstrumentName, stringManufacturer;
int yearBuilt, cost, stringYearBuilt, stringCost, numStrings, numFrets;

instrumentName = scnr.nextLine();
manufacturerName = scnr.nextLine();
yearBuilt = scnr.nextInt();
scnr.nextLine();
cost = scnr.nextInt();
scnr.nextLine();
stringInstrumentName = scnr.nextLine();
stringManufacturer = scnr.nextLine();
stringYearBuilt = scnr.nextInt();
stringCost = scnr.nextInt();
numStrings = scnr.nextInt();
numFrets = scnr.nextInt();

myInstrument.setName(instrumentName);
myInstrument.setManufacturer(manufacturerName);
myInstrument.setYearBuilt(yearBuilt);
myInstrument.setCost(cost);
myInstrument.printInfo();

myStringInstrument.setName(stringInstrumentName);
myStringInstrument.setManufacturer(stringManufacturer);
myStringInstrument.setYearBuilt(stringYearBuilt);
myStringInstrument.setCost(stringCost);
myStringInstrument.setNumOfStrings(numStrings);
myStringInstrument.setNumOfFrets(numFrets);
myStringInstrument.printInfo();

System.out.println(" Number of strings: " + myStringInstrument.getNumOfStrings());
System.out.println(" Number of frets: " + myStringInstrument.getNumOfFrets());
}
}

public class Instrument {

protected String instrumentName;
protected String instrumentManufacturer;
protected int yearBuilt, cost;

public void setName(String userName) {
instrumentName = userName;
}

public String getName() {
return instrumentName;
}

public void setManufacturer(String userManufacturer) {
instrumentManufacturer = userManufacturer;
}

public String getManufacturer(){
return instrumentManufacturer;
}

public void setYearBuilt(int userYearBuilt) {
yearBuilt = userYearBuilt;
}

public int getYearBuilt() {
return yearBuilt;
}

public void setCost(int userCost) {
cost = userCost;
}

public int getCost() {
return cost;
}

public void printInfo() {
System.out.println("Instrument Information: ");
System.out.println(" Name: " + instrumentName);
System.out.println(" Manufacturer: " + instrumentManufacturer);
System.out.println(" Year built: " + yearBuilt);
System.out.println(" Cost: " + cost);
}

}

// TODO: Define a class: StringInstrument that is derived from the Instrument classpublic class StringInstrument extends Instrument {
// TODO: Declare private fields: numStrings, numFrets

/*answer here/*

// TODO: Define mutator methods -
// setNumOfStrings(), setNumOfFrets()

/*answer here/*

// TODO: Define accessor methods -
// getNumOfStrings(), getNumOfFrets()

/*answer here/*

}

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