Problem 1: 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 , 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.

Problem 1: 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 , 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.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

Make a recursive method for factoring an integer n. First, find a factor f, then recursively factor n / f. This assignment needs a resource class and a driver class; these two classes will need to be in two separate files. The resource class will contain all of the methods and the driver class only needs to call the methods. The driver class needs to have only 5 lines of code. The code needs to be written in Java.
recursive solution oddEvenMatchRec:the method takes an integer array as a parameter and returns a boolean. The method returns trueif every odd index contains an odd integer AND every even index contains aneven integer(0 is even). Otherwise it returns fals
java Write a recursive method largestDigitthat accepts an integer parameter and returns the largest digit value that appears in that integer. Your method should work for both positive and negative numbers. If a number contains only a single digit, that digit's value is by definition the largest. The following table shows several example calls: Call Value Returned largestDigit(14263203) 6 largestDigit(845) 8 largestDigit(52649) 9 largestDigit(3) 3 largestDigit(0) 0 largestDigit(-573026) 7 largestDigit(-2) 2 Obey the following restrictions in your solution: You may not use a String, Scanner, array, or any data structure (list, stack, map, etc.). Your method must be recursive and not use any loops (for, while, etc.). Your solution should run in no worse than O(N) time, where N is the number of digits in the number.
Write a recursive method called printReverse. The method shall take an array of char and will print the content in reverse order in the same line. The method shall use public and private method.
Write a recursive method that returns thelargest integer in an array. Write a test program that prompts the user to enter alist of eight integers and displays the largest element.
Rewrite the private static int recurseMax method without using Java API public class Recursion{ public static void main(String[] args){ // My tests (DO NOT MODIFY!) int[] a = {3,2,6,4,15,7,9,8,6}; p(recurseSum(a)); // Sum should be 60 p(recurseMax(a)); // Max should be 15 // End of tests! } // Recursive methods below here... public static int recurseSum(int[] a){ // TODO: This is the wrapper method. You must complete this AND implement helper method int total = recurseSum(a, a.length); return total; } private static int recurseSum(int[] a, int i){ if (i <= 0) return 0; return (recurseSum(a, i - 1) + a[i - 1]); } public static int recurseMax(int[] a){ int max = recurseMax(a, a.length); return max; } private static int recurseMax(int[] a, int i){ if(i == 1) return a[0]; return Math.max(a[i-1], recurseMax(a, i-1)); } //…
write a recursive method that will sum up all elements in an array and returm the result. name the method as arraySum
Java: Write a recursive method that finds and returns the sum of the elements of an int array. Also, write a program to test your method.
Write a recursive method to print all the permutations of astring. For example, for the string abc, the permutation isabcacbbacbcacabcba public static void displayPermutation(String s)public static void displayPermutation(String s1, String s2)The first method simply invokes displayPermutation(" ", s). The secondmethod uses a loop to move a character from s2 to s1 and recursively invokesit with new s1 and s2. The base case is that s2 is empty and prints s1 to theconsole.Write a test program that prompts the user to enter a string and displays all itspermutations.
Please complete the task by yourself only in JAVA with explanation. Don't copy. Thank you. Using quicksort to sort an array of car objects by various criteria. Define a class Car as follows: class Car { public String make; public String model; public int mpg; // Miles per gallon } a) Implement a comparator called CompareCarsByMakeThenModel that can be passed as an argument to the quicksort method from the lecture notes. CompareCarsByMakeThenModel should return a value that will cause quicksort to sort an array of cars in ascending order (from smallest to largest) by make and, when two cars have the same make, in ascending order by model.
Please complete the task by yourself only in JAVA with explanation. Don't copy. Thank you. Using quicksort to sort an array of car objects by various criteria. Define a class Car as follows: class Car { public String make; public String model; public int mpg; // Miles per gallon } a) Implement a comparator called CompareCarsByMakeThenModel that can be passed as an argument to the quicksort method from the lecture notes. CompareCarsByMakeThenModel should return a value that will cause quicksort to sort an array of cars in ascending order (from smallest to largest) by make and, when two cars have the same make, in ascending order by model. b) Implement a comparator called CompareCarsByDescendingMPG that can be passed as an argument to the quicksort method from the lecture notes. CompareCarsByDescendingMPG should return a value that will cause quicksort to sort an array of cars in descending order (from largest to smallest) by mpg. c) Implement a comparator called…
The sorted values array contains the sixteen integers 1, 2, 3, 13, 13, 20, 24, 25, 30, 32, 40, 45, 50, 52, 57, 60. How many recursive calls are made by our binarySearch method given an initial invocation of binarySearch(45, 0, 15)? A. 3. B. 1. C. 4 D. 2. E. 0 A recursive definition is a definition (choose the best answer): A. that is recursive. B. in which something is defined in smaller terms of itself. C. which uses a mathematical equation. D. where a base case is defined. E. that repeats itself. Recursion is implemented by the system: A. using run time storage allocation. B. using static storage allocation. C. using a single static "stack frame". D. using compile time storage allocation.