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- THie. Thoui, 28 minutes, 58 seconds. v Question Completion Status: Analyze the following code and select the right printing result ArrayList arrstr=new ArrayList(); arrstr.add("Bashful"); arrstr.add("awful"); arrstr.add("jumpy"); arrstr.add("Happy"); arrstr.add(3, "hi"); System.out.println(arrstr); O [Bashful, awful, jumpy, hi] O [Bashful, awful, jumpy, hi, Happy] O [Bashful, awful, jumpy, Happy, hi] O [Bashful, awful, jumpy, hi, hi] Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Clos exercice3.docx exercice2.docx TOSHIBA[JAVA] Please provide comments to my code import java.util.HashMap;public class Items {private final HashMap<String, Integer> allWeapons = setHash("weapon");private final HashMap<String, Integer> allArmor = setHash("armor");private final HashMap<String, Integer> allConsumables = setHash("consumable");public String type;public String name;public int modifier;public Items(String type) {randomItem(type);}public Items(String type, String name) {switch (type) {case "weapon":if (allWeapons.containsKey(name)) {this.type = "weapon";this.name = name;this.modifier = allWeapons.get(name);} else {randomItem(type);}break;case "armor":if (allArmor.containsKey(name)) {this.type = "armor";this.name = name;this.modifier = allArmor.get(name);} else {randomItem(type);}break;case "consumable":if (allConsumables.containsKey(name)) {this.type = "consumable";this.name = name;this.modifier = allConsumables.get(name);} else {randomItem(type);}break;default:randomItem(type);break;}}private…Please helping write the code for the scale down. the size after scaling down can't less than 2x2
- 3I did this java code that asks the user to enter an ID of a student from this array studentDatabase[0] = new Person("Mariam", "Baksh", 20, "201910077"); studentDatabase[1] = new Person("Noora", "AlBeloushi", 23, "201810010"); studentDatabase[2] = new Person("Ali", "AlEkabi", 40, "201910075"); this is the method I did to delete the student System.out.print("Enter the student's UoF ID: "); String toRemoveID = readInput.next(); deleteStudent ( toRemoveID); public static void deleteStudent (String toRemoveID){for(int check_database = 0; check_database<studentDatabase.length; check_database++) {if(studentDatabase[check_database].getUofID().equals(toRemoveID)) {while(check_database<studentDatabase.length-1){studentDatabase[check_database] =studentDatabase[check_database+1];check_database++;}{ System.out.println("The Student with ID: "+toRemoveID+" has been deleted."); break; }} my problem is I want to add tho the method an error message in case the user inter a wrong IDtext file 80 1 2 3 100 100 100 1001 0 2 100 3 4 100 1002 2 0 4 4 100 5 1003 100 4 0 100 100 4 100100 3 4 100 0 3 3 3100 4 100 100 3 0 100 1100 100 5 4 3 100 0 2100 100 100 100 3 1 2 0 My code below. I am getting an error when trying to create my adjacency matrix. i dont know what i am doing wrong def readMatrix(inputfilename): ''' Returns a two-dimentional array created from the data in the given file. Pre: 'inputfilename' is the name of a text file whose first row contains the number of vertices in a graph and whose subsequent rows contain the rows of the adjacency matrix of the graph. ''' # Open the file f = open(inputfilename, 'r') # Read the number of vertices from the first line of the file n = int(f.readline().strip()) # Read the rest of the file stripping off the newline characters and splitting it into # a list of intger values rest = f.read().strip().split() # Create the adjacency matrix adjMat = []…
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- Question 1: Magic Matrix Magic square is an ? × ? matrix that is filled with the numbers 1,2,3, . . . . . , ?2 is a magic square if the sum of the elements in each row, in each column, and in the two diagonals is the same value. 6 1 8 7 5 3 2 9 4 Write a Java code to randomly generate a 3X3 matrix and check if the matrix is the magic square. In your code you must test two features: a. Does each of the numbers 1,2,3,….9 occur in the matrix? b. Are the sums of the rows, columns, and diagonals equal to each other? Note: to generate a random number use the method Math.random() which generates a pseudo random number greater than or equal to 0 and less than 1. Sample Output could be as follows: Sample 1: The randomly generated matrix is: 4 3 8 9 5 1 2 7 6 Sample 2: The randomly generated matrix is: 4 9 2 3 5 7 8 1 6Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; M = {3, 5, 7, 9, 10}; N = {3, 4, 9, 10}; and O = {6, 7,8, 9, 10}. List the members of the indicated set, using set braces:(i) (N nO)'(ii) M u (N - O)(iii) MΔO(iv) M n N’nOQ2: How will the array be after the code is executed? 1) int a[5]={3,5,6,4,1}; for (int i=0;i<=5;i++){ a[i]+=5;