Given an input string, complete a helper method that extracts the vowels and returns the string All strings are lowercase. Do not use any loops or regular expressions. Test case 1:
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- 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 }in python "AnagramMake a method is_anagram_of(a,b) that tests if a is an anagram of b.A string a is an anagram of a string b, if it uses exactly the same letters, but the order can be different.Spaces are ignored, as well as capitalization.Examples of anagrams:"eleven plus two" - "twelve plus one""William Shakespeare" - "I am a weakish speller""Tom Marvolo Riddle" - "I am Lord Voldemort""Anagrams" - "Ars manga""television ads" - "enslave idiots"Counter examples:"bla" - "aalb""cat" - "tact"Hint: Make a dictionary that holds how often a letter occurs in a word."""def is_anagram_of(a, b):passJava Palindrome Detector A palindrome is any word, phrase, or sentence that reads the same forward and backward. Here are some well-known palindromes: Able was I ere I saw Elba A man a plan a canal Panama Desserts I stressed Kayak Write a boolean method that uses recursion to determine whether a String argument is a palindrome. The method should return true if the argument reads the same forward and backward. Demonstrate the method in a program.
- Palindrome Detector: a palindrome is any word, phrase, or sentence that reads the same forward and backward. Here are some well-known palindromes: Able was I, ere I saw Elba A man, a plan, a canal, panama Desserts, I stressed Kayak Write a Boolean method that uses recursion to determine whether a String argument is a palindrome. The method should return true if the argument reads the same forward and backward. Demonstrate the method in a program.If your first name starts with a letter from A-J inclusively: Write a recursive method that takes a string as argument and determines if the string has more vowels than consonants. Test the method by asking the user to enter a string. Hint: Write your recursive method to first count vowels and consonants.Write a recursive method that displaysa string reversely on the console using the following header: public static void reverseDisplay(String value) For example, reverseDisplay("abcd") displays dcba. Write a test programthat prompts the user to enter a string and displays its reversal.
- Complete Through this method /** * Count the number of occurrences of substrings "baba" or "mama" * in the input string recursively. They may overlap. * For example, countBabaMama("aba babaa amama ma") → 2, * and countBabaMama("bababamamama") → 4. * @param input is the input string. * @return the number of occurrences. */public static int countBabaMama(String input) { // base case // recursive step }Use for loops in Java Language Write the method catDog.* * Given a String str, return true if the words "cat" and "dog" appear the same* number of times in the string.* * Examples: catDog("catdog") returns true catDog("catcat") returns false* catDog("1cat1cadodog") returns true* * @param str the String to examine.* @return true if there are the same number of cats and dogs.Write a recursive method called digitCount() that takes a positive integer as a parameter and returns the number of digits in the integer. Hint: The number of digits increases by 1 whenever the input number is divided by 10. Use Java. Ex: If the input is: 345 the method digitCount() returns and the program outputs: 3 Ex: If the input is: 0 the method digitCount() returns and the program outputs: 1 import java.util.Scanner; public class LabProgram {/* TODO: Write recursive digitCount() method here. */public static void main(String[] args) {Scanner scnr = new Scanner(System.in);int num, digits;num = scnr.nextInt();digits = digitCount(num);System.out.println(digits);}}
- The intName method in the "Problem Solving: Stepwise Refinement" section accepted arguments < 1,000. Using a recursive call, extend its range to 999,999. For example an input of 12,345 should return " twelve thousand three hundred forty five". Note that some number names may have extra spaces at the beginning or end. import java.util.Scanner; public class IntegerName { /** Turns a number into its English name. @param number a positive integer < 999,999 @return the name of the number (e.g. "two hundred seventy four") */ public static String intName(int number) { int part = number; // The part that still needs to be converted String name = ""; // The name of the number if (part >= 1000) { // Recursively call intName } if (part >= 100) { name = digitName(part / 100) + " hundred"; part = part % 100; } if (part >= 20) { name = name + " " + tensName(part); part = part % 10; } else if (part >= 10) { name = name + " " + teenName(part); part = 0; } if (part > 0) { name =…Write a recursive method thatfinds the number of occurrences of a specified letter in a string using the followingmethod header: public static int count(String str, char a) For example, count("Welcome", 'e') returns 2. Write a test program thatprompts the user to enter a string and a character, and displays the number ofoccurrences for the character in the string.Please read the instructions carefully and keep in mind of the bolded phrase. 1. Create a Netbeans project and name it Test. 2. In the main method, ask the user for a string of letters. 3. Create a RECURSIVE (WITHOUT LOOPS, but can use duplicated strings) method that prints all the substrings of the input string. The recursive method's signature is as follows: public static void printSub1(String s) 4. If the user enters "abcd", the recursive method will return the substrings in the this order: abcd abc ab a b bc b c bcd bc b c cd c d