Write a recursive method in Java that displays a portion of a given array backward. Consider the last entry in the portion first.
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Write a recursive method in Java that displays a portion of a given array backward. Consider the last entry in the portion first.
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- Write a Java program to implement sequential search. Create a String array in main method and initialize it with 5 different names. Now take any name from the user, find whether that name is present in that array or not, and print the position of that name in the array if found. Write a search method to sequentially search the name from the array. Invoke the search method from the main method. The array and the name to be searched should be passed into the search method as parameters. Sample input & output:[Let’s assume that the 5 names are Diana, Becker, Ann, Eve, and Cory]Enter the name: CoryThe name is found at 5th position.Enter the name: Donald The name is not found.Now write a Java program to implement binary search for the above problem. [Hint: You can use equals() and compareTo() methods of String class.]java Write a recursive function with two parameters: an array of ints and the number of elements in the array. The function will return the sum of all positive values in the array. Do not add any negative array elements to the sum. You can add another parameter to the function if you wish.Write a recursive function that finds the minimum value in an ArrayList. Your function signature should be public static int findMinimum(ArrayList<Integer>) One way to think of finding a minimum recursively is to think “the minimum number is either the last element in the ArrayList, or the minimum value in the rest of the ArrayList”. For example, if you have the ArrayList [1, 3, 2, 567, 23, 45, 9], the minimum value in this ArrayList is either 9 or the minimum value in [1, 3, 2, 567, 23, 45] Hint:The trick is to remove the last element each time to make the ArrayList a little shorter. import java.util.*; public class RecursiveMin{public static void main(String[] args){Scanner input = new Scanner(System.in);ArrayList<Integer> numbers = new ArrayList<Integer>();while (true){System.out.println("Please enter numbers. Enter -1 to quit: ");int number = input.nextInt();if (number == -1){break;}else {numbers.add(number);}} int minimum =…
- Write a recursive function that finds the minimum value in an ArrayList. Your function signature should be public static int findMinimum(ArrayList<Integer>) One way to think of finding a minimum recursively is to think “the minimum number is either the last element in the ArrayList, or the minimum value in the rest of the ArrayList”. For example, if you have the ArrayList [1, 3, 2, 567, 23, 45, 9], the minimum value in this ArrayList is either 9 or the minimum value in [1, 3, 2, 567, 23, 45] ================================================ import java.util.*; public class RecursiveMin{public static void main(String[] args){Scanner input = new Scanner(System.in);ArrayList<Integer> numbers = new ArrayList<Integer>();while (true){System.out.println("Please enter numbers. Enter -1 to quit: ");int number = input.nextInt();if (number == -1){break;}else {numbers.add(number);}} int minimum = findMinimum(numbers);System.out.println("Minimum: " + minimum);}public static int…Use the recursive method binarySearch given below and an array a given as an image below, to complete the following question: Suppose I make a method call: binarySearch(a, 51, 0, a.length - 1);. How many recursive binarySearch calls are made before returning? Note: Don't include the first method call: binarySearch(a, 51, 0, a.length - 1); as part of your count. Method: public int binarySearch(int[] n, int key, int lo, int hi) { if (lohi) { return -1; } int mid= lo + (hi - lo) / 2; if (keya[mid]) { } else if (key > a[mid]) { } } else { } a (array): return binarySearch(a, key, lo, mid - 1); 6 0 return binarySearch(a, key, mid + 1, hi); return mid; 13 1 Type your answer... 14 2 5 3 3 25 33 4 43 5 51 6 53 64 72 7 8 9 84 34 10 9 93 11 95 96 97 12 13 14Write a java method to search for an element in an array using a linear search. Many list processing tasks, including searching, can be done recursively. The base case typically involves doing something with a limited number of elements in the list (say the first element), then the recursive step involves doing the task on the rest of the list. Think about how linear search can be viewed recursively; if you are looking for an item in a list starting at index i:o ¬If i exceeds the last index in the list, the item is not found (return -1).o ¬If the item is at list[i], return i.o ¬If the is not at list[i], do a linear search starting at index i+1
- Write a recursive method that takes as parameter as array of type double (num) and the length of the array (len). The method should display the square root of numbers that are greater than 10.0 in the array. The method prototype is: public static void display(double [] num, int len); You may use sqrt method that is defined in the Math class.Create a Java class RecursiveMethods.java and create the following methods inside: ALL THE METHODS NEED TO BE COMPLETED RECURSIVLY. NO LOOPS ALLOWED. - oddEvenMatchRec: the method takes an integer array as a parameter and returns a boolean. The method returns true if every odd index contains an odd integer AND every even index contains an even integer(0 is even). Otherwise it returns false. - sumNRec: The method takes an integer array A and returns the sum of all integers in the parameter array. - nDownToOne: Takes an integer n and prints out the numbers from n down to 1, each number on its own line. - inputAndPrintReverse: Inputs integers from the user until the user enters 0, then prints the integers in reverse order. For this method, you may NOT use an array or any type of array structure, in other words, you may not use any structure to store the user input.FOR JAVA Write a Java method that takes two 2 dimensional int arrays (a and b) and a 2 dimensional boolean array (c) where all three arrays have the same size. Your method should return an array (result) such that, if a partic- ular element in c is true, then the corresponding (same indexed) element in result must be the multiplication of the the corresponding elements of a and b. If the element in c is false, then the the corresponding element in result must be the negative of multiplication of the the corresponding element in a and b. For example ifa = {{1,2,3},{4,5}},b = {{1,2,1},{0,2}} andc = {{true,false,true},{false,true}}, then the result should be result={{1, -4, 3}{0, 10}}.
- Write a recursive method that gets three parameters as input: an array of integers called nums, an integer called index,and an integer called The purpose of this method is to return true if value is stored in the array starting at nums[index]. That is, you have to check if value is equal to nums[index] or nums[index +1] or nums[index +2 ] …. nums[nums.length -1]. Do not use loops.(java code)Create a Java class RecursiveMethods.java and create the following methods inside: ALL THE METHODS NEED TO BE COMPLETED RECURSIVLY. NO LOOPS ALLOWED. - oddEvenMatch Rec: the method takes an integer array as a parameter and returns a boolean. The method returns true if every odd index contains an odd integer AND every even index contains an even integer(0 is even). Otherwise it returns false. sumNRec: The method takes an integer array A and returns the sum of all integers in the parameter array. nDownToOne: Takes an integer n and prints out the numbers from n down to 1, each number on its own line. inputAndPrintReverse: Inputs integers from the user until the user enters , then prints the integers in reverse order. For this method, you may NOT use an array or any type of array structure, in other words, you may not use any structure to store the user input. After completing the methods, use the main method to test them. You can hard code the tests.implement two recursive versions of the linear search that gets an array of songs and a title and searches for a song with the given title in the array. In this version, the function returns the first index of the array containing the number. If the number is not in the array, the function returns -1. int linear_search_rec_first(int* ar, int length, int number);