Java code please.

Recursive Multiplication Write a recursive function that accepts two arguments into the parameters x and y. The function should return the value of x times y. Remember, multiplication can be performed as repeated addition as follows: 7 * 4 = 4 + 4 + 4 + 4 + 4 + 4 + 4

String Reverser Write a recursive method that accepts a string as its argument and prints the string in reverse order. Demonstrate the method in a program.