using netbeans via xxamp using loops solve the following solve in text inorder to copy it easy

(1) Write a program that calculates the sum of all the numbers between M and N, where M and N are two integers entered by the user. (2) Write a program that calculates the factorial of a number (N), using the following formula: [ n*(n-1)*(n-2)* ... *2*1], where N is an input entered by the user. (e.g. 5! = 5*4*3*2*1 = 120)