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lutik1710 [3]
2 years ago
9

The template code provided is intended to check whether an integer entered by the user is outside of the range 20-29 (inclusive)

. If it is outside of this range the program should print a warning and change the number to 25. However, when using De Morgan's law to simplify this code, the programmer has made some mistakes. Can you correct the errors so the code functions as intended? code: Scanner scan = new Scanner(System.In); System.Out.Println("Enter a number in the twenties"); int num = scan.NextInt(); if(num < 20 && num > 30){ System.Out.Println("That's not in the twenties!"); num = 25; } System.Out.Println("Your number is " + num);
Computers and Technology
1 answer:
irakobra [83]2 years ago
8 0

Answer:

Change if(num < 20 && num > 30)

to

if(num < 20 || num > 30)

Explanation:

The code has lots of errors most of which are as a result of case sensitivity of java programming language

The following errors were corrected.

All System.Out.Println were changed to System.out.println

scan.NextInt() was changed to scan.nextInt()

Now to the actual correction that needs to be made;

The programmer's error was in using the conditional statement.

The programmer used if(num < 20 && num > 30) as its condition which means that if num is less tha 20 and at the same time greater than 30

This is impossible because no number is greater than 30 and less than 20 at the same time.

So, the correction made was to change the && (and) to || (or) which means that numbers greater than 30 or less than 20.

<em></em>

<em>This corrects the programmer's mistake</em>

<em>See attachment for complete code</em>

Download txt
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<u>Answer:</u>

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<em>Step 1:</em><em> Goto References tab Contents group Update table </em>

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Which of the following is true about sorting functions?
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Explanation:

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Write a program that plays a reverse guessing game with the user. The user thinks of a number between 1 and 10, and the computer
nika2105 [10]

Answer:

  1. import random  
  2. target = 7  
  3. count = 0
  4. for i in range(100):
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  6.    
  7.    if(guess == target):
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Explanation:

The solution is written in Python 3.

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Design two subclasses of Employee…SalariedEmployee and HourlyEmployee. A salaried employee has an annual salary attribute. An ho
avanturin [10]

Answer:

Complete answer to above question is given below.

Explanation:

Employee.java

import java.util.Date;

public class Employee

{

private int empID;

private Address address;

private Name name;

private Date date;

public Employee()

{

}

public Employee(int empID)

{

this.empID = empID;

}

public int getEmpID()

{

return empID;

}

public void setEmpID(int empID)

{

this.empID = empID;

}

public Address getAddress()

{

return address;

}

public void setAddress(Address address)

{

this.address = address;

}

public Name getName()

{

return name;

}

public void setName(Name name)

{

this.name = name;

}

public Date getDate()

{

return date;

}

public void setDate(Date date)

{

this.date = date;

}

}

Name.java

public class Name {

private String name;

public Name(String name) {

super();

this.name = name;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

}

Address.java

public class Address {

private String addr;

public Address(String addr) {

super();

this.addr = addr;

}

public String getAddr() {

return addr;

}

public void setAddr(String addr) {

this.addr = addr;

}

}

SalariedEmployee.java

public class SalariedEmployee extends Employee {

private double annualSalary;

public SalariedEmployee(double annualSalary) {

super();

this.annualSalary = annualSalary;

}

public double getAnnualSalary() {

return annualSalary;

}

public void setAnnualSalary(double annualSalary) {

this.annualSalary = annualSalary;

}

}

HourlyEmployee.java

public class HourlyEmployee extends Employee {

private double hourlyrate;

private double hours_worked;

private double earnings;

public HourlyEmployee(double hourlyrate, double hours_worked) {

super();

this.hourlyrate = hourlyrate;

this.hours_worked = hours_worked;

}

public double getEarnings()

{

if(hours_worked<=40)

{

earnings=hours_worked*hourlyrate;

}

else if(hours_worked>40)

{

earnings=40*hourlyrate+(hours_worked-40)*hourlyrate*1.5;

}

return earnings;

}

public double getHourlyrate() {

return hourlyrate;

}

public void setHourlyrate(double hourlyrate) {

this.hourlyrate = hourlyrate;

}

public double getHours_worked() {

return hours_worked;

}

public void setHours_worked(double hours_worked) {

this.hours_worked = hours_worked;

}

public void setEarnings(double earnings) {

this.earnings = earnings;

}

Test.java

import java.util.Date;

public class Test {

public static void main(String[] args) {

System.out.println("_____Salaried Employee_____");

SalariedEmployee se=new SalariedEmployee(50000);

se.setEmpID(1234);

se.setName(new Name("Williams"));

se.setAddress(new Address("4,Richmond Street"));

se.setDate(new Date("Oct-11-2014"));

System.out.println("Employee Id :"+se.getEmpID());

System.out.println("Employee Name :"+se.getName().getName());

System.out.println("Employee Address :"+se.getAddress().getAddr());

System.out.println("Joining Date :"+se.getDate());

System.out.println("The Annual Salary :"+se.getAnnualSalary());

System.out.println("\n_____Hourly Employee_____");

HourlyEmployee he1=new HourlyEmployee(8.5,39);

he1.setEmpID(4567);

he1.setName(new Name("Kane"));

he1.setAddress(new Address("5,lake View Road"));

he1.setDate(new Date("Nov-12-2015"));

System.out.println("Employee Id :"+he1.getEmpID());

System.out.println("Employee Name :"+he1.getName().getName());

System.out.println("Employee Address :"+he1.getAddress().getAddr());

System.out.println("Joining Date :"+he1.getDate());

System.out.println("The Earnings Of An HourlyEmployee :"+he1.getEarnings());

System.out.println("\n_____Hourly Employee_____");

HourlyEmployee he2=new HourlyEmployee(9.5,47);

he2.setEmpID(1111);

he2.setName(new Name("John"));

he2.setAddress(new Address("17,Villey Parley Street"));

he2.setDate(new Date("Dec-13-2011"));

System.out.println("Employee Id :"+he2.getEmpID());

System.out.println("Employee Name :"+he2.getName().getName());

System.out.println("Employee Address :"+he2.getAddress().getAddr());

System.out.println("Joining Date :"+he2.getDate());

System.out.println("The Earnings Of An HourlyEmployee :"+he2.getEarnings());

}

}

Output:

_____Salaried Employee_____

Employee Id :1234

Employee Name :Williams

Employee Address :4,Richmond Street

Joining Date :Sat Oct 11 00:00:00 IST 2014

The Annual Salary :50000.0

_____Hourly Employee_____

Employee Id :4567

Employee Name :Kane

Employee Address :5,lake View Road

Joining Date :Thu Nov 12 00:00:00 IST 2015

The Earnings Of An HourlyEmployee :331.5

_____Hourly Employee_____

Employee Id :1111

Employee Name :John

Employee Address :17,Villey Parley Street

Joining Date :Tue Dec 13 00:00:00 IST 2011

The Earnings Of An HourlyEmployee :479.75

7 0
2 years ago
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