Which of the following option is correct? Public static int sum(int] theArray, int cell) { Iff(???) { Return 0; } return theArray[cell]+sum(theArray.cell+1); Java C# if(cell>theArray.length-1) if(cell>theArray.Length-1) Java C# if(celltheArray length) if(cell>theArray.Jength) Java C# if(cell>0) if(cell>0)
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- In ArrayUtility class, create a public static method equals that receives two arrays of int's and returns true if they have the same length and equal corresponding elements. In ArrayUtilityTest class, create a public static method equalsTest that prints the results for the following 6 cases: two empty arrays, one empty and one singleton, two singleton with the same element, two singleton with different elements, two arrays with two identical elements, two arrays with two different elements. Call only this class in the main method and check the results. In ArrayUtility and ArrayUtilityTest, design, implement and test a method named isSorted that checks if an array of int-s is already sorted, i.e. all the elements are in increasing order. In ArrayUtility and ArrayUtilityTest, design, implement and test a method named generateIntArray that generates a random array with the provided length having elements randomly generated between a minimum and maximum value, including those values create…In java, please read the text file as array. Then, replace the null with 0 and calculate the sum of the new students in ABC University.Example of text file: (university,year,total_students,new_students,new_staff,ABC, 2000, 3457, , ,ABC, 2001, 3675,218, ,EFG, 2000, 2389,602, ,EFG, 2001, 2785,396, 65,)Write a complete Java program named Transpose that contains the following: The main method asks the user to provide n - the number of rows and m – the number of columns for a rectangular matrix of integers from 2 to 10. The main method calls the matrixSetUp() method which creates a rectangular matrix of specified dimensions and populates it with random integers from 0 to 99. Hint: You can use Math.random() to generate random numbers. The main method prints the matrix created by the matrixSetUp () method in the form of a matrix. Hint: in order to print the array in the example format, you can use Arrays.toString(matrix[row]) to print each row. The main method calls the matrixTranspose() method that creates and returns a transpose of the initial matrix. Hint: matrix transpose means: ����������[���][������]=�[������][���] The main method prints the transpose of the matrix.
- Need help writing the method: getWaitlistedIDs() – returns an array of type int[], namely the ids of students in the waitlist. public int[] getWaitlistedIDs() { // insert solution here and modify the return statement return null; } For context public class Course { public String code; public int capacity; public SLinkedList<Student>[] studentTable; public int size; public SLinkedList<Student> waitlist; public Course(String code) { this.code = code; this.studentTable = new SLinkedList[10]; this.size = 0; this.waitlist = new SLinkedList<Student>(); this.capacity = 10; } public Course(String code, int capacity) { this.code = code; this.studentTable = new SLinkedList[capacity]; this.size = 0; this.waitlist = new SLinkedList<>(); this.capacity = capacity; }[JAVA] attached below is the problem statement ------------------------------------------------------------------ public int[] solution(ArrayList<ArrayList<Integer>> innerNums) {// ↓↓↓↓ your code goes here ↓↓↓↓return null;}Requirements: Use Java Programming only. Show screenshots of your work. 6. Write method public static int linearSearch(int [] arr, ine key) which returns the largest index such that arr[index] matches the key. If there is match, returns -1. 7. Write method public static double average(int [] arr) which returns the average of all elements in given array arr. Assume that arr has length at least 1. 8. Write method public void crazyPrint(String sentence, int n) which print out the given sentence n times. Assume n is positive integer.
- Need help writing the following method: getRegisteredStudents() – returns an array of type Student[], namely the registered Students. The length of the array is the current size (number of students) of the course. public Student[] getRegisteredStudents() { // insert your solution here and modify the return statement return null; } FOR CONTEXT public class Course { public String code; public int capacity; public SLinkedList<Student>[] studentTable; public int size; public SLinkedList<Student> waitlist; public Course(String code) { this.code = code; this.studentTable = new SLinkedList[10]; this.size = 0; this.waitlist = new SLinkedList<Student>(); this.capacity = 10; } public Course(String code, int capacity) { this.code = code; this.studentTable = new SLinkedList[capacity]; this.size = 0; this.waitlist = new SLinkedList<>();…Not allowed to add variables in brackets next to originIndex * @return index of the point that is closest to the origin, which is (0, 0) In * case of a tie, return the lowest index */ public int closestToOriginIndex() {How to complete the following code, and then use the program showed in screenshot to test it. I have also attach screenshot of the StackInterface code public class ArrayStack<T> implements StackInterface<T> {public static int CAPACITY = 100;private final T[] elements;private int topIndex; public ArrayStack() {} public ArrayStack(int size) {// Initialize size of elements// Initialize topIndex to -1} public void push(T obj) {} public T top() {} public void pop() {} public boolean isEmpty() {} public boolean isFull() {}public int getStackSize() {// Return stack size, i.e., number of elements} @Overridepublic String toString() {String s = "The stack is: "; for (int i = topIndex; i >= 0; i--)s += elements[i] + " "; return s;}}
- Need help writing the following method: getWaitlistedStudents() – returns an array of Students in the waitlist. public class Course { public String code; public int capacity; public SLinkedList<Student>[] studentTable; public int size; public SLinkedList<Student> waitlist; public Course(String code) { this.code = code; this.studentTable = new SLinkedList[10]; this.size = 0; this.waitlist = new SLinkedList<Student>(); this.capacity = 10; } public Course(String code, int capacity) { this.code = code; this.studentTable = new SLinkedList[capacity]; this.size = 0; this.waitlist = new SLinkedList<>(); this.capacity = capacity; } public Student[] getWaitlistedStudents() { // insert your solution here and modify the return statement return null; }String spell = "Redikulus"; How would you find the index of the 'u' just before the last 's' using a single line of code? Multiple answers may be correct. Given the string String spell = "Redikulus"; How would you find the index of the 'u' just before the last 's' using a single line of code? Multiple answers may be correct. A. spell.substring(5, spell.length()).indexOf('u'); B. spell.indexOf('u', 5); C. spell.lastIndexOf('u'); D. spell.contains('u'); E. spell.indexOf('u', spell.length() - 2); F. spell.indexOf('u', spell.indexOf('l'));a). Write a method called createArray which takes two parameters a and b, and returns an array that has all integer from a to b. Example 1: a = 6, b = 2 Array is [6, 5, 4, 3, 2] Example 2: a = 4, b = 8 Array is [4, 5, 6, 7, 8] Example 3: a = 4, b = 4 Array is [4] b). In main method, you should ask the user to input two integers a and b. Then call method createArray and print out the array. class Main {public static int[] createArray(int a, int b) {}public static void main(String[] args) {}}