write java program ASAP question 8

Write a program that takes a value x as input and outputs this sum for n taken be each of the values I to 10, 50, and 100. Your program should repeat the calcul tion for new values of x until the user says she or he is through. The expressio is called the factorial of n and is defined as Use variables of type double to store the factorials (or arrange your calculation to avoid any direct calculation of factorials); otherwise, you are likely to produce integer overflow, that is, integers larger than Java allows. 8. In cryptarithmetic puzzles, mathematical equations are written using letters. Each letter can be a digit from 0 to 9, but no two letters can be the same. Here is a sample problem SEND + MORE MONEY A solution to the puzzle is S 9, R-8, O = 0, M-1, Y= 2, E= 5, N=6, D= 7. Write a program that finds a solution to the cryptarithmetic puzzle of the following: TOO + TOO + TOO + TOO GOOD The simplest technique is to use a nested loop for each unique letter (in this case T O, G, D). The loops would systematically assign the digits from 0 to 9 to each letter. For example, it might first try T-0, 0-0, G = 0, D = 0, then T-0, 0-0 G=0,D=1, then T 0, O = 0, G=0, D = 2, etc., up to T = 9,0-9, G = 9, D = 9, In the loop body, test that each variable is unique and that the equation is satisfied. Output the values for the letters that satisfy the equation. Write a program that calculates the total grade for N classroom exercises as a per centage. Use the DecimalFormat class to output the value as a percent. The user should input the value for N followed by each of the N scores and totals. Calculate the overall percentage (sum of the total points earned divided by the total points possible) and output it using the DecinalFormat class. Sample input and output are shown below. How many exercises to input? received for exercise 1