Write a recursive method named contains with the following header: public static boolean contains(String haystack, String needle) The method should return true if needle is contained within haystack and false if needle is not in haystack.

Problem 2: Complete the seperateDuplicateChars () method in Seperate Duplicates.java as follows: The method takes a String str as a parameter and returns a new String. The returned String should be exactly like str, but any identical characters that appear in a consecutive way must be separated by hyphens "-". You may ONLY use the following methods from the String class: charAt(), substring() and length(). Other than uncommenting the code, do not modify the main method in Seperate Duplicates.java. Sample runs provided below. Argument String str "Hello" "Bookkeeper" "Yellowwood door" "Chicago Cubs" Return String "Hel-lo" "Bo-ok-ke-eper" "Yel-low-wo-od do-or" "Chicago Cubs"

Write a method specification for the method below.public String getDefinitionFromDictionary(String word)

List the name and return type of this method: public String getCode(){ return code;}

Code 16-1 /** This class has a recursive method. */ public class EndlessRecursion { public static void message() { System.out.println("This is a recursive method."); message(); } } Code 16.2 /** This class has a recursive method message, which displays a message n times. */ public class Recursive { public static void messge (int n) { if (n>0) { System.out.println (" This is a recursive method."); message(n-1); } } } Task #1 Tracing Recursive Methods 1. Copy the file Recursion.java (see Code Listing 16.1) from the Student Files or as directed by your instructor. 2. Run the program to confirm that the generated answer is correct. Modify the factorial method in the following ways: a. Add these lines above the first if statement: int temp; System.out.println("Method call -- " + "calculating " + "Factorial of: " + n); Copyright © 2019 Pearson Education, Inc., Hoboken NJ b. Remove this line in the recursive section at the end of the method: return...

Java int[] numbers = {345, 632, 675, 157, 834, 294, 832};1. Write a method to find its highest value. 2. Write a method to find its lowest value. 3. Write a method to find its total value.

Given a long string use recursion to traverse the string and replace every vowel (A,E,I,O,U) with an @ sign. You cannot change the method header. public String encodeVowels(String s){ // Your code here }

PROBLEM STATEMENT: Return the String "odd" if the input is odd otherwisereturn "even". public class CheckForEven{public static String solution(int number){// ↓↓↓↓ your code goes here ↓↓↓↓return null;}} please get help with this Java Question

Repeating String Write a method that takes a String and an int and return a String that is the original String repeated n times. For example, repeatString("Famous", 3) should return "FamousFamousFamous" The method signature should be public String repeatString(String str, int n) public String repeatString(String str, int n) { //declare a string variable //set up statements for repeating n number of times //create the appropriate return statement }

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PYTHON: This exercise is a variation on "instrumenting" the recursive Fibonacci program to better understand its behavior. Write a supporting method that counts how many times the fib function is called to compute fib (n) where n is a user input. Hint: To solve this problem, you need an accumulator variable whose value "persists" between calls to fib. You can do this by making the count an instance variable of an object. Create a FibCounter class with the following methods: _init_(self) Creates a new FibCounter, setting its count instance variable to 0. getCount(self) Returns the value of count. fib(self, n) Recursive function to compute the nth Fibonacci number. It increments the count each time it is called. resetCount(self) Sets the count back to 0.

help create a Java recursive method that determines if a number is a prime number