How do I make the code:    public static void swapArrayEnds(int[] sortArray) {       int i;    } flip the first and last number in? import java.util.Scanner; public class ModifyArray {    public static void swapArrayEnds(int[] sortArray) {       int i;    }    public static void main (String [] args) {       Scanner scnr = new Scanner(System.in);       int numElem = 4;       int[] sortArray = new int[numElem];       int i;       int userNum;       for (i = 0; i < sortArray.length; ++i) {          sortArray[i] = scnr.nextInt();       }       swapArrayEnds(sortArray);       for (i = 0; i < sortArray.length; ++i) {          System.out.print(sortArray[i]);          System.out.print(" ");       }       System.out.println("");    } }

preLabC.java 1 import java.util.Random; 2 import java.util.StringJoiner; 3 4- public class preLabC { 5 6- 7 8 9 10 11 12 13 14 15 16 17 18 19 20 } public static String myMethod(MathVector inputVector) { String vectorStringValue = new String(); // empty String object System.out.println("here is the contents object, inputVector: + inputVector); // get a String out of that MathVector object. Do it here. On the next line. // return the double value here. return vectorStringValue; "1 ▸ Compilation Description A MathVector object will be passed to your method. Return its contents as a String. If you look in the file MathVector.java you'll see there is a way to output the contents of a MathVector object as a String. This makes it useful for displaying to the user. /** * Returns a String representation of this vector. The String should be in the format "[1, 2, 3]" * * @return a String representation of this vector * @apiNote **DO NOT** use the built-in (@code Arrays.toString()} method. */…

package Q2;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.util.ArrayList;import java.util.Scanner;public class Question2 {public static void main(String[] args) throws FileNotFoundException {/*** Part a* Finish creating an ArrayList called NameList that stores the names in the file Names.txt.*/ArrayList<String> NameList;/*** Part b* Replace null on the right-hand-side of the declaration of the FileInputStream object named inputStream* so that it is initialized correctly to the Names.txt file located in the folder specified in the question description*/FileInputStream inputStream = null;Scanner scnr = new Scanner(inputStream); //Do not modify this line of code/*** Part c* Using a loop and the Scanner object provided, read the names from Names.txt* and store them in NameList created in Part a.*//*** Part d* Reorder the names in the ArrayList so that they appear in reverse alphabetical order.*/// System.out.println("NameList after correct ordering: "…

public class arrayOutput ( public static void main (String [] args) { final int NUM ELEMENTS = 3; int[] userVals = new int [NUM_ELEMENTS]; int i; } Type the program's output userVals [0] = 2; userVals [1] = 6; userVals [2] = 8; for (i = userVals.length - 1; i >= 0; −−1) { System.out.println(userVals [1]); } C.C. ? ? ??

package lab06;;public class gradereport {     public static void main(String[] args) {        Scanner in = new Scanner(System.in);double[] Scores = new double[10];        for(int i=0;i<10;i++){            System.out.println("Enter score " + (i+1));scores[i]=in.nextdouble();        }                for(int i=0;i<10;i++){            if (scores[i] >=80)                System.out.println("Score " + (i+1) + " receives a grade of HD");            else if (scores[i]>=70)                System.out.println("Score " + (i+1) + " receives a grade of D");            else if (scores[i] >=60)                System.out.println("Score "+ (i+1) + " receives a grade of C");            else if (scores[i] >=50)                System.out.println("Score " + (i+1) + " receives a grade of P");            else if (scores[i] >=40)                System.out.println("Score " + (i+1) + " receives a grade of MF");            else if (scores[i] >=0)                System.out.println("Score " +…

import java.util.Scanner; public class LabProgram {    public static void main(String[] args) {        Scanner scnr = new Scanner(System.in);         int n = scnr.nextInt();        int[] arr = new int[n];         for (int i = 0; i < n; i++) {            arr[i] = scnr.nextInt();        }         for (int i = n - 1; i >= 0; i--) {            System.out.print(arr[i]);             if (i > 0) {                System.out.print(",");            }        }    }}