Q.1 For this question, write a complete UML class diagram for the class described below. Use a line of minus signs to separate sections. Don't worry about drawing a box or centering any text. Do include all proper UML notation. For the exam, you can do this in NotePad or another plain text editor and then copy and paste it into the Canvas textbox or work directly in the textbox. Class Description: Your need to create an instantiable class that represents a parcel of raw land that can be sold by a real estate company. This class should be named Land. It will contain three fields: a string named location and a width and length, measured in feet, each of which can accept numbers with decimal points. You may assume that every parcel of land is rectangular and that 'width' describes the size of the property along the road and 'length' is how far back it goes from the road. The class needs one constructor that sets the values all the fields. The class needs the following public methods: • Getters and setters for all fields. • A method called getArea that calculates and returns the area of the parcel of land in square feet. (Area is calculated as length x width.) • Standard methods: toString, equals, and hashCode where equals and hashCode define two equivalent parcels of land as each having the same length and each having the same width. Implementation of the Comparable interface, comparing area. • Q.2 & Q.3 Using the same information as in the previous question, create a new Intellij project and create the Land class with all the fields, constructors, and methods listed. Then create a JUnit test file for this class. It is your job to determine what makes sense to test and what values to use in order to thoroughly test the class's methods. In the class code, be sure to include all proper JavaDoc comments. You do not need to comment the JUnit tests, but please do delete any tests that you are not using. For the exam, you will be asked to upload the java file for your class in Q.2 and the java file for your JUnit test in Q.3. Make sure you can locate both these files before the actual exam.

Explain the principles of Recursion in Java programming such as how to use it, how important the topic is, and why is useful to learn it.

Math 130 Java Programming  Does my code pass the requirements? May I have more explanation? Is my code readable? Is my code well commented? How may I better organize my code? Are there whitespaces to appropriate help separate distinct parts? import java.util.*; public class NumberArray  { //method definition of printArray() which accepts //array as parameter public static void printArray(int[] array)     { System.out.printf("  "); //displaying the array elements for(int j = 0; j < array.length; j++)    { if(j > 0 && j % 6 ==0)  { System.out.printf("\n"); System.out.printf("  "); }   System.out.printf("%3d ", array[j]);     } } //method definition of getTotal() //which accepts array as parameter public static double getTotal(int[]array) { //declare variable sum as double and set 0 double sum = 0; //using for loop, calculate the total of all elements in the array for(int j = 0; j < array.length; j++) { sum+= array[j]; } //returning sum to the calling method return sum; }…

Please construct a 2048 game in java by object-oriented programming! readymade code is perfect!

QUESTION 5 Competition synchronization constructs in Java are provided by the Object class. True False

Provide an example of method overriding in Python, and discuss how it facilitates polymorphism.

Pls help ASAP. This is Java Language question.

6.b.Fast in java coding please. Thank you 1. Abstract classes and interfaces can both be used to model common features.How do you decide whether to use an interface or a class?2. What is Garbage Collection and how can you mark an object for GarbageCollection.

Could you help explain the notion of "Data Encapsulation" in Java and how it relates to "Object-Oriented Programming"?

2. What are the main benefits of using encapsulation in Java?