Can you please give an example of a Java code using the recursion method  to call a method named "sum" which will multiply numbers from 1 to the input number: Example, the sum method should take a number say 20 and output product of: 20*19*18*17*.....*1.

Java

I need help with this Java problem to output like in this image below (Not the one highlighted in yellow): Number pattern Write a recursive method called printNumPattern() to output the following number pattern. Given a positive integer as input (Ex: 12), subtract another positive integer (Ex: 3) continually until a negative value is reached, and then continually add the second integer until the first integer is again reached. For this lab, do not end output with a newline. Ex. If the input is: 12 3 the output is: 12 9 6 3 0 -3 0 3 6 9 12       This Java code that I need help with: import java.util.Scanner; public class NumberPattern {    public static void printNumPattern(int x, int y) {        System.out.print(x+" ");        int n=x-y;        if (n < 0) {            System.out.print(n+" ");            System.out.print(x+" ");            while(n != 12){                n=x+y;                x=x+y;               System.out.print(n+" ");             }            return;…

Using a Java program solve the following problem using arrays: Past A: Coupon collector is a classic statistic problem with many practical applications. The problem is to pick objects from a set of objects repeatedly and determine how many picks are needed for all the objects to be picked at least once. A variation of the problem is to pick cards from a shuffled deck of 52 cards repeatedly and find out how many picks are needed before you see one of each suit. Assume a picked card is placed back in the deck before picking another. Write a program to simulate the number of picks needed to get total of four cards from each different suit and display the four cards picked (it is possible that a card may be picked twice). Here is a sample run of the program: Queen of Spades 5 of Clubs Queen of Hearts 4 of Diamonds Number of picks: 12 Sample run explanation: As you see in the above run, 12 picks are made to get the four cards from different suits. The other 8 picks (12-4-8) were from the…

Use java and correctly indent code.

Write a static recursive method in Java called mRecursion that displays all of the permutations of the charactersin a string passed to the method as its argument. For example, the character sequence abc has thefollowing permutations: acb, bac, bca, cab, cba. Then Write a static method called getInput that get aninput string from the user and passed it to the mRecursion method written above in a method call.Please does so using what I already had   //Get input from in to call recursive method        //to display those char permutations        public static String getInput ( ) {            Scanner in = new Scanner(System.in);            String combination = in.nextLine();            System.out.println("Enter string:);             return stringComb; //Method to show permutations of a desired string// This only return 3 string combination for some reason        static void myRecursion(String aString) {            //isEmpty check            if ( aString.length() == 0){…

Java - Write an iterative method that calculates the SUM of all integers between 1 and a given integer N (input into the method). Write a corresponding recursive solution. (return answer, don’t print)

I need help creating a code below   -  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. Ex: If the input is: 345 the method digitCount() returns and the program outputs: 3

Write a Non tail recursion and a tail recursion method in Java with a test class that does the following: The factorial of a positive integer n —which we denote as n!—is the product of n and the factorial of n 1. The factorial of 0 is 1. Write two different recursive methods in Java that each return the factorial of n. Please and Thank you

The factorial of a positive integer n —which we denote as n!—is the product of n and the factorial of n 1. The factorial of 0 is 1. Write two different recursive methods in Java that each return the factorial of n. Analyze your algorithm in Big-Oh notation and provide the appropriate analysis, ensuring that your program has a test class.