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Modify the sequentialSearch and binarySearch methods presented in this chapter so they keep a count of and display on the screen the number of comparisons they make before finding the value they are searching for. Then write a
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- Program71.java Write a program that creates a 32-element array of random integers all from 1 to 100, inclusive. Then execute a custom method with the array as its only argument. The method should begin by using a loop to print the array elements in 4 rows and 8 columns, with all columns being five characters wide. Duplicates are okay. This same loop should determine how many integers in the array are odd numbers. After this loop ends, use this figure to declare a new array of integers named odds. Process the array again in the method, but this time with a foreach loop, and add the odd integers to the odds array. Return the odds array back to main. In main, report the size of the array and sort it ascending. Finally use a while loop to print the odd integers all on one line separated by spaces. Program73.java In main: Declare an array capable of holding five first names. Populate the array in a for loop by entering five first names all on one line separated by spaces. sort the array…arrow_forwardExercise 1: Write a program that generates a sequence of 20 random values between 0 and 99 in an array, prints the sequence, sorts it, and prints the sorted sequence. Use the sort method from the standard Java library. Exercise 2: Write a program that stores a list of countries: "Egypt", "Switzerland", "Argentina", "Spain", "Portugal", "Luxemburg", etc. Initialize your array with a single statement. Then print out the array. Use the sort function as before to sort the countries in alphabetical order. Reprint your array. Exercise 3: Implement exercises 1 and 2 using ArrayList. Use the Collections.sort method for sorting. After you have printed and sorted your results, then append an additional element to each list and reprint your ArrayLists. Notice that the new items will appear just at the end and will not be sorted. Resort and print out the new ArrayLists again. To clarify, you should print out your ArrayLists after your first sort, after adding items with the…arrow_forwardPlease do not change any of the method signatures in either class. Implement the methods described below. Partition.java public static int partitionLomuto(int[] arr, int low, int high) Implement this method using Lomuto’s partition algorithm. This is the algorithm that we discussed in class that chooses the last element as the partition and iterates through the array swapping an element that belongs in the low side with the lowest (farthest left) element on the high side. At the end, the pivot is swapped with the lowest element (farthest left) element on the high side. This method should return the index of the pivot element, which is now in its correct position in the array. See the pseudocode below. partition(arr, p, r) x = arr[r] i = p – 1 for j = p to r – 1 if arr[j] ≤ x i = i + 1 swap arr[i] and arr[j] swap arr[i+1] and arr[r] return i+1 What sort of input arrays will enable Hoare’s algorithm to still create relatively equal size partitions whereas Lumoto’s algorithm will create…arrow_forward
- (Java) Open up your Sort.java file from the prior activity. Copy and paste the below method into your file right below bubbleSort. /*** Sorts an array of integers from smallest to largest * using the insertion sort algorithm* @param array the list of integer values*/public static void insertionSort(int array[]) { return; } Write the insertionSort method by using the pseudocode for insertion sort provided above. Now, remove the method call to bubbleSort in main and replace it with a call to insertionSort. Note that you can leave the bubbleSort method inside of your program, you just won't be calling it. You should get the same sorted output as when you called bubbleSort. When finished, upload Sort.javaarrow_forwardThis method contains an implementation error. Explain what this error is, how it manifests itself, how it can be fixed, and why this fix works. The method should return true when an empty array is provided. The same applies when it contains only one element. public static boolean isMinHeap(int arr[], int index) { if (index > (arr.length) / 2) return true; boolean left = (arr[index] <= arr[2*index + 1]) && isMinHeap(arr, 2*index + 1); boolean right = (2*index + 2 == arr.length) || (arr[index] <= arr[2*index + 2] && isMinHeap(arr, 2*index + 2)); return left && right; }arrow_forwardUse C#. Chapter 6 discussed the predefined IndexOf() method of an array; the method takes two parameters, the whole array and an element to search. The method returns the index of the element if found, and -1 if not found. Now, you are asked to write a program that has a method FindMatch() that does exactly the same thing: 1) The Main() calls FindMatch(). 2) FindMatch() takes two parameters: 1) the whole array of integer test scores { 85, 98, 100, 73, 67, 82, 92, 87 }, and 2) an element to search from users input. 3) FindMatch() returns the index of element if found back to the Main(), and -1 if not found. The method should not use IndexOf() to do the search. 4) The program displays either the index or -1 in the Main(). Sample output (from Microsoft Visual Studio) as shown belowarrow_forward
- JAVA PROGRAM ASAP *********** THIS PROGRAM MUST WORK IN HYPERGRADE AND PASS ALL THE TEST CASES. Sorting - Lab #7 Create a class called Sort that has three static methods for sorting integer arrays. All three methods should accept an array of integers, have void return type, and should sort the array in-place. 1. public static void bubbleSort(int[] array) { // your code here } 2. public static void insertionSort(int[] array) { // your code here } 3. public static void selectionSort(int[] array) { // your code here } Please enter a space separated list of numbers to sort or type QUIT to exit:\n3 2 1ENTERSorted array using Bubble Sort algorithm:\n1 2 3\nSorted array using Insertion Sort algorithm:\n1 2 3\nSorted array using Selection Sort algorithm:\n1 2 3\nPlease enter a space separated list of numbers to sort or type QUIT to exit:\nquitENTER Test Case 2 Please enter a space separated list of numbers to sort or type QUIT to exit:\n1ENTERSorted array…arrow_forwardjava coding Write a method that will search an integer array for a number and return the count of how many times the number is in the array. The array is not sorted. Any inputs that the method needs must be part of the parameter list, not input from the user or a file or taken from the instance dataarrow_forwardWrite a Java program tat prompts user for a list of integers with 0 as the last value.Save the values in an array. Assume there can be maximum 100 values. Theprogram should have the following methods:- A method that takes the array as parameter and updates each value in thearray to the square of the value.- Another method that takes the original and modified arrays as parametersand displays the original and the squared values.arrow_forward
- TableAA.java Write a program that will store a multiplication table in a 2-D array. The user will enter how many lines (rows) it will have. The table will be printed to the screen. (Make it look nice – consider using printf.) This program will contain a static method. This method will take in an integer (the user’s number) and it will return a 2-D array. The code inside of the method will create the array, fill it with all the appropriate values that one would expect in a multiplication table, and then return that filled array. In the main method, you will ask the user how many lines they want to see and then you will use your static method to get the array. Once you have the array back from the static method, use nested for loops to print it in table form. See samples on the following pages. Program only needs to run once. Add try/catches so the user can only enter positive integers (1 and higher).arrow_forwardA bit new to methods and need a little bit of help. Swap Method Your task is to write a public static method named swap that takes a single parameter which is an array of doubles. This method should swap the first and last element in the array and then return the adjusted double array. You can assume that all arrays passed into the method are a length of 2 or more. For example, the test data provided when passed into the swap method should go from: {8.34, 7.221, 10.643, 93.2} toarrow_forwardJava Programming For this assignment, you are required to create a program named SelectionSortPA.java and implement selection sorting algorithm as specified below: Public static void selectionSort(int[] arr) Your main method accepts a number N from the command argument list. Then use the number N to create an N-element int array. Assign random numbers between [0, Integer.MAX_VALUE) to each of the N elements of the array. Call selectionSort method to sort the array. Display the array elements after each iteration of selection sort. Verify the array is sorted after calling your sorting method. If you implement all the required methods correctly, the driver program should generate outputs similar to the sample below:arrow_forward
- Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,