Declare an array of Strings named plants and assign it the values rose, jasmine, daffodil

(Intro to Java) Open a new Java file called ArrayMethods.java. Read the Javadoc comment for each method below and write the method according to the description in the comment Once you are getting the correct output for all tests inside of main, upload your source file to Canvas public class ArrayMethods {    /**     * Displays the contents of an array on the console     * with each element separated by a blank space     * Prints a new line character last     * @param nums the array to print to the console     */    public static void printArray(int[] nums) {        return;    }        /**    * Assuming an array of integers, return true if 1    * is the first element or 1 is the last element    * Note: you may assume that you will be given an array    * of at least length 1    * is1FirstLast([1, 2, 10]) → true    * is1FirstLast([10, 1, 2, 1]) → true    * is1FirstLast([13, 10, 1, 2, 3]) → false    * @param numbers the array of int numbers    * @return whether or not 1 is the first or…

(in java) (with a screenshot of the code please) write a java program that contains 2 arrays, one for 10 students names and the other for their grades  they must be all entered by the user -the names array will be a 1d array (single array) -the grades array will be a 2d array and it will have 3 rows and 10 columns, the first one is will represent the first exam, the second will represent the second exam, and the third one will represent the final exam finally, you will do a loop that will calculate the sum of all exams for each student

(True/False): The ArraySum procedure (Section 5.2.5) receives a pointer to any array ofdoublewords.

(Intro to Java)  Explain the answers to the below questions. include a written answer to the question using step-by-step explanation   3. Write 5-6 lines of code to open a PrintWriter and write out the contents of the plants array into a text file named plants.txt

(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#

(Element-Wise array Multiplication) Create a 3-by-3 array containing the even integers from 2 through 18. Create a second 3-by-3 array containing the integers from 9 down to 1, then multiply the first array by the second. Using Python. Please keep it simple.

(Intro to Java)

(Querying an Array of Invoice Objects) Use the class Invoice provided in the lab assignment to create an array of Invoice objects.Class Invoice includes four properties—a PartNumber (type int), a PartDescription (type string), a Quantity of the item being purchased (type int) and a Price (type decimal).Write a console application that performs the following queries on the array of Invoice objects and displays the results:a) Use LINQ to sort the Invoice objects by PartDescription.b) Use LINQ to sort the Invoice objects by Price.c) Use LINQ to select the PartDescription and Quantity and sort the results by Quantity.d) Use LINQ to select from each Invoice the PartDescription and the value of the Invoice(i.e., Quantity * Price). Name the calculated column InvoiceTotal. Order the results by Invoice value. [Hint: Use let to store the result of Quantity * Price in a new range variable total.]e) Using the results of the LINQ query in Part d, select the InvoiceTotals in the range$200 to…

(Java) Q1 explain the answers to the below questions using step-by-step explanation.