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Exercise: n-sided Regular Polygon In n-sided regular polygon, all sides have the same length and all angles have the same degree. Design and write a java class named RegularPolygon java that contains: - A data field named n that defines the number of sides inthe polygon, with default value 3, n should be greater than 2. - A data field named side that stores the length of the side, with defaul value 1.0. side should be greater than 0.0. - A data field named x that defines the x-coordinate of thepolygon's center with default value 0.x should be a positive number or 0. - A data field named y that defines the y-coordinate of thepolygon's center with default value 0. y should be a positive number or 0. - A data field named noof polygons that stores the number of created polygon objects. - A no-arg constructor that creates a regular polygon with default values. - A constructor that creates a regular polygon with the specified number of sides and length of side, centered at (0,0). - A constructor that creates a regular polygon with the specified number of sides, length of side, and x - and y coordinates. - The get and set methodsfor all private data fields. - The method getperimeter () that returns the perimeter of the polygon. - The method getarea () that returns the area of the polygon. The formula for computing the area of a regular polygon is: Area=()ns2 the sample output below. - The method getwbofpolygons () that returns the value of the nbofpolygons data field. Note: You should validate the data fields appropriately in the constructors and set () methods. If the values are not valid you hise to display an appropriate message which informs the user about the valid range for the data field. If the validation in the constructors is not correct you should add "The record is not created." to your message. Write a test program, TestRegularPolygon.java which indudes the following steps: - Output the current number of created Regularpolygon objects by using get Numberorpolygons (). - Create the first Regularpol ygon object (polygon1) which has default values for all members. - Output the current number of created Regularpolygon objects by using get Numberof polygons 0 . - Output its members using tostring (). - Set the members n, side, x and y of the first object to 4,5,6,0,0 and 9.0 using appropriate set (i) methods. - Display the perimeter and area of the first Requl arpolygon using getperimeter () and getarea (). - Create 2nd Regularpolygon object (polygon2) whose number of side is 6 and length of side is 4.0. - Output the current number of created Regularpolygon objects. - Output members of the 2nd Regulaxpolygon object: - Create the first Regularpolygon object (polygoni) which has default values for all members: - Output the current number of created Regularpolygon objects by using getsumberof polygoris (f.. - Output its members using tostring (). - Set the members n, side; x and y of the first object to 4,5.6,8.0 and 9.0 using appropriate set () methods. - Display the perimeter and area of the first Regularpolygon using getperimeter () and getarea (). - Create 2nd Regularpolygon object (polygon2) whose number of side is 6 and length of side is 4.0. - Output the current number of created Regularpolygon objects. - Output members of the 2nd Regularpolygon object. - Display the perimeter and area of the 2nd Regularpolygon. - Set the x-coordinate and y-coordinate of the center of the 2nd Regularpolygon to 6,5 and 5.7. - Output members of the 2nd Regular polygon object again. - Create 3rd Regularpolygon object (polygon3) whose number of side is 10 , length of side 154.0,x-coordinate andy-coordinste of the center are 5,6 and 7.8. - Output the current number of created Reqularpolygon objects. - Output members of the 3rd Regularpolygon object. - Display the perimeter and area of the 3rd Regularpolygon. Sample output Current number of polygons: 1 Polygon :: Number of side: 3 Length of side: 1.0 Center: (0,0,0.01 Perimeter: 22.4 Area: 31.36 Current number of polygons: 2 Polygon :: Number of side: 6 Length of side: 4.0 Center: (0.0,0.0) Perimeter: 24.0 Area: 41.569219381653056 Polygon :: Number of side: 6 length of side: 4.0 Center: (6.5,5.7) current number of polygons: 3 Polygon :: Number of side: 10 tength of side: 4.0 Center: (5,6,7.8) Perimeter: 40.0 Area: 123.10734148701015