In this lab, you will create a programmer-defined class and then use it in a Java program. The program should create two Rectangle objects and find their area and perimeter.InstructionsMake sure the class file named Rectangle.java is open.In the Rectangle class, create two private attributes named length and width. Both length and width should be data type double.Write public set methods to set the values for length and width.Write public get methods to retrieve the values for length and width.Write a public calculateArea()method and a public calculatePerimeter() method to calculate and return the area of the rectangle and the perimeter of the rectangle.Open the file named MyRectangleClassProgram.java.In the MyRectangleClassProgramclass, create two Rectangle objects named rectangle1 and rectangle2.Set the length of rectangle1 to 10.0 and the width to 5.0. Set the length of rectangle2 to 7.0 and the width to 3.0.Print the value of rectangle1’s perimeter and area, and then print the value of rectangle2’s perimeter and area.Execute the program.// This program uses the programmer-defined Rectangle class.public class MyRectangleClassProgram{publicstaticvoidmain(Stringargs[]){// Create rectangle1 and rectangle2 objects here.Rectangle rectangle1=newRectangle();Rectangle rectangle2=newRectangle(); // Set the length of rectangle1 to 10.0 here.rectangle1.setLength(10.0); // Set the width of rectangle1 to 5.0 here.rectangle1.setWidth(5.0);// Print the area and perimeter of rectangle1 here.System.out.println("Area of rectangle1: "+rectangle1.calculateArea());System.out.println("Perimeter of rectangle1: "+rectangle1.calculatePerimeter()); // Set the length of rectangle2 to 7.0 here.rectangle2.setLength(7.0); // Set the width of rectangle2 to 3.0 here.rectangle2.setWidth(3.0);// Print the area and perimeter of rectangle2 here.System.out.println("Area of rectangle2: "+rectangle2.calculateArea());System.out.println("Perimeter of rectangle2: "+rectangle2.calculatePerimeter());System.exit(0);}}

I have written the code for Rectangle.java file:The code snippet is as follows:public class…

Answered: n this lab, you will create a…

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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Instructions

Make sure the class file named Rectangle.java is open.
In the Rectangle class, create two private attributes named length and width. Both length and width should be data type double.
Write public set methods to set the values for length and width.
Write public get methods to retrieve the values for length and width.
Write a public calculateArea()method and a public calculatePerimeter() method to calculate and return the area of the rectangle and the perimeter of the rectangle.
Open the file named MyRectangleClassProgram.java.
In the MyRectangleClassProgramclass, create two Rectangle objects named rectangle1 and rectangle2.
Set the length of rectangle1 to 10.0 and the width to 5.0. Set the length of rectangle2 to 7.0 and the width to 3.0.
Print the value of rectangle1’s perimeter and area, and then print the value of rectangle2’s perimeter and area.
Execute the program.

// This program uses the programmer-defined Rectangle class.

public class MyRectangleClassProgram

{

publicstaticvoidmain(Stringargs[])

{

// Create rectangle1 and rectangle2 objects here.

Rectangle rectangle1=newRectangle();

Rectangle rectangle2=newRectangle();

// Set the length of rectangle1 to 10.0 here.

rectangle1.setLength(10.0);

// Set the width of rectangle1 to 5.0 here.

rectangle1.setWidth(5.0);

// Print the area and perimeter of rectangle1 here.

System.out.println("Area of rectangle1: "+rectangle1.calculateArea());

System.out.println("Perimeter of rectangle1: "+rectangle1.calculatePerimeter());

// Set the length of rectangle2 to 7.0 here.

rectangle2.setLength(7.0);

// Set the width of rectangle2 to 3.0 here.

rectangle2.setWidth(3.0);

// Print the area and perimeter of rectangle2 here.

System.out.println("Area of rectangle2: "+rectangle2.calculateArea());

System.out.println("Perimeter of rectangle2: "+rectangle2.calculatePerimeter());

System.exit(0);

}

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