(Rectangle Class) Create class Rectangle. The class has attributes length and width, each of which defaults to 1. It has read-only properties that calculate the Perimeter and the Area of the rectangle. It has properties for both length and width. The set accessors should verify that length and width are each floating-point numbers greater than 0.0 and less than 20.0. Write an app to test class Rectangle. THIS IS C#

(Java) Open up Eclipse and create a new class called ArrayListPractice.java Next, copy and paste the below program into your file and run the code. Your job is to take the given code, remove all the arrays and replace them with the identical ArrayLists. There should be no arrays in your program. You will need to call the ArrayList methods as defined in the lesson notes above. Note that you will not be able to do method overloading with ArrayLists so you should assign different names to your methods. Once you have made the changes, you should get identical output as the given version of the program. Submit your program when you are finished. /**   * @author  * CIS 36B  * Activity 5.2   */ import java.util.ArrayList; import java.util.Scanner; public class ArrayListPractice {     public static void main(String[] args) {                  int scores[] = {95, 96, 97, 98, 99};         System.out.println("Integer test scores:");         print(scores);          System.out.println();…

(Java) Q 5,6 Explain the answer step-by-step . I want to understand how to do it so please include verbal explanation. Thank you!   Part 1 Write the class described below: The name of the class is Student The class has two public member variables: A String called name and a double called gpa  The class has a public member method called printStudent. This method prints out the message: "Hi! My name is " + name + ".\nAnd my gpa is " + gpa It returns nothing Part 2  Now, declare a new Student object named jackie, and assign it the values "Jackie Chan" for the name and 3.5 for the gpa.   Finally insert the object jackie into the below ArrayList: ArrayList<Student> al = new ArrayList<Student>();