Why does dew form on grass overnight

Write a test program that creates two Rectangle objects—one with width 4 and height 40 and the other with width 3.5 and height 3

BARSIC [14]

Answer:

public class Rectangle {

private double width;

private double heigth;

public Rectangle(double width, double heigth) {

this.width = width;

this.heigth = heigth;

}

public double getWidth() {

return width;

}

public void setWidth(double width) {

this.width = width;

}

public double getHeigth() {

return heigth;

}

public void setHeigth(double heigth) {

this.heigth = heigth;

}

public double perimeter(double width, double heigth){

double peri = 2*(width+heigth);

return peri;

}

public double area(double width, double heigth){

double area = width*heigth;

return area;

}

class RectangleTest{

public static void main(String[] args) {

//Creating two Rectangle objects

Rectangle rectangle1 = new Rectangle(4,40);

Rectangle rectangle2 = new Rectangle(3.5, 35.7);

//Calling methods on the first Rectangel objects

System.out.println("The Height of Rectangle 1 is: "+rectangle1.getHeigth());

System.out.println("The Width of Rectangle 1 is: "+rectangle1.getWidth());

System.out.println("The Perimeter of Rectangle 1 is: "+rectangle1.perimeter(4,40));

System.out.println("The Area of Rectangle 1 is: "+rectangle1.area(4,40));

// Second Rectangle object

System.out.println("The Height of Rectangle 2 is: "+rectangle2.getHeigth());

System.out.println("The Width of Rectangle 2 is: "+rectangle2.getWidth());

System.out.println("The Perimeter of Rectangle 2 is: "+rectangle2.perimeter(4,40));

System.out.println("The Area of Rectangle 2 is: "+rectangle2.area(4,40));

}

Explanation:

Firstly A Rectangle class is created with two fields for width and heigth, a constructor and getters and setters the class also has methods for finding area and perimeters
Then a RectangleTest class containing a main method is created and two Rectangle objects are created (Follow teh comments in the code)
Methods to get height, width, area and perimeter are called on each rectangle object to print the appropriate value

5 0

2 years ago

Please debug the below code in Java please.

lisabon 2012 [21]

Answer:

Check the explanation

Explanation:

//Bugs are highlighted in bold text

class Invoice

Declarations

private num invoiceNumber

private string customer

private num balanceDue

private num tax

public void setInvoiceNUMBER(num number)

Declarations

num LOW_NUM = 1000

num HIGH_NUM = 9999

if number > HIGH_NUM then

invoiceNumber = 0

else

if number < LOW_NUM then

invoiceNumber = 0

else

invoiceNumber = num

endif

return

public void setCustomer(string cust)

customer = cust

return

public void setBalanceDue(num balance)

//Bug balanceDue is Invoice class varible

//but it is assigned to balance .it gives error

balance = balanceDue

setTax()

return

private void setTax()

Declarations

//Bug TAX_RATE is declared as string

//but assigned a double value

string TAX_RATE = 0.07

tax = tax * TAX_RATE

return

public void displayInvoice()

output "Invoice #", invoiceNumber

output "Customer: ", customer

output "Due: ", balanceDue

output "Tax: ", taxDue

//Bug

//Invoice class has no variable called balance .it should be balanceDue

output "Total ", balance + taxDue

return

endClass

start

Declarations

Invoice inv1

Invoice inv2

Invoice inv3

//Warning

//it gives warning object taken but not initilaized

Invoice inv4

inv1.setInvoiceNumber(1244)

inv1.setCustomer("Brown")

inv1.setBalanceDue(1000.00)

inv1.displayInvoice()

inv2.setInvoiceNumber(77777)

inv2.setCustomer("Jenkins")

inv2.setBalanceDue(2000.00)

inv2.displayInvoice()

inv3.setInvoiceNumber(888)

inv3.setCustomer("Russell")

inv3.setBalanceDue(3000.00)

//Bug

//setTax method of Invioce doesnot take any arguments

inv3.setTax(210.00)

inv3.displayInvoice()

stop

//Here is the complete program in c++

//Run the program using Microsoft visual studio 2010 vc++

#include<iostream>

#include<iomanip>

#include<string>

using namespace std;

class Invoice

{

//class varibales

private:

int invoiceNumber;

string customer;

double balanceDue;

double tax;

//class methods

public:

void setCustomer(string cus);

void displayInvoice();

void setBalanceDue(double balance);

void setInvoiceNUMBER(int number);

void setTax();

};

void Invoice::displayInvoice()

{

cout<< setw(10)<<"Invoice #"<<setw(5)<<invoiceNumber<<endl;

cout<<setw(10)<<"Customer: "<<setw(5)<<customer<<endl;

cout<<setw(10)<<"Due: "<<setw(5)<<balanceDue<<endl;

cout<<setw(10)<<"Tax: "<<setw(5)<<tax<<endl;

//Bug

//Invoice class has no variable called balance .it should be balanceDue

cout<< "Total "<< balanceDue + tax<<endl;

}

void Invoice::setCustomer(string cust)

{

customer = cust;

}

void Invoice::setInvoiceNUMBER(int number)

{

const int LOW_NUM = 1000;

const int HIGH_NUM = 9999;

if( number > HIGH_NUM )

invoiceNumber = 0;

else

if (number < LOW_NUM )

invoiceNumber = 0;

else

invoiceNumber = number;

}

void Invoice::setBalanceDue(double balance)

{

balanceDue = balance;

}

void Invoice::setTax()

{

double TAX_RATE = 0.07;

tax = balanceDue * TAX_RATE;

}

int main()

{

Invoice inv1;

Invoice inv2;

Invoice inv3;

inv1.setInvoiceNUMBER(1244);

inv1.setCustomer("Brown");

inv1.setBalanceDue(1000.00);

inv1.setTax();

inv1.displayInvoice();

inv2.setInvoiceNUMBER(77777);

inv2.setCustomer("Jenkins");

inv2.setBalanceDue(2000.00);

inv2.setTax();

inv2.displayInvoice();

inv3.setInvoiceNUMBER(888);

inv3.setCustomer("Russell");

inv3.setBalanceDue(3000.00);

inv3.setTax();

inv3.displayInvoice();

system("pause");

return 0;

}

Kindly check the output image below.

5 0

3 years ago

The function of an audio mixer is to _____. layer audio tracks at their ideal volume combine, control, and route audio signals f

larisa [96]

Answer: combine, control, and route audio signals from inputs to outputs

Explanation:

A audio mixer is refered to as the sound mixer or the mixing console and it's an electronic device that's used for mixing, and combining several audio signals and sounds.

The input to the console is the microphone. The audio mixer can also be used in controlling digital or analog signals. These are then summed up in producing output signals.

Therefore, the function of the audio mixer is to combine, control, and route audio signals from inputs to outputs.

7 0

2 years ago

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. What will be the ou

lord [1]

Answer:

2

Explanation:

The output of the Java program is 2. The public Vehicle class is defined with the class variable 'counter'. When a Vehicle class object is instantiated, the counter variable increments by one.

In the program, the two instances of the class are created, incrementing the counter variable to two, the print statement outputs 2 as the result of the program.

8 0

3 years ago

In order for the wavelength of a wave to increase, the frequency must...

kari74 [83]

Decrease. Think like this, if you were standing in the ocean getting hit by waves, frequency would be how many waves hit you in a certain amount of time. If there were lots of little waves hitting you the number of waves (the frequency) would be high, whereas big waves are slower and take more time to reach you so you would get hit by less of them in the same time frame. The less frequent, the longer the wave.

7 0

3 years ago