Recursion Practices

Write a function in Java called factorial() that will take a positive integer as input and returns its factorial as output.

Given a non-negative int n, return the sum of its digits recursively (no loops). Note that mod (%) by 10 yields the rightmost digit (126...

Given a string, compute the number of times lowercase "hi" appears in the string. Make the countHi be recursive.

Write the missing base case for function largest. Function largest should find the largest number in array numbers. When largest is first...

For function sumtok, write the missing recursive call. This function returns the sum of the values from 1 to k.

The following method is a Selection Sort method. Within the method, there is an error on one line. You job is to find that line and fix...

Write a method quicksort that takes in an ArrayList of integers and returns them in ascending order, using a quicksort style of sorting....