Please answer all parts, provide comments, and show outputs

And for first part please include main method

Example 1a: FactorialCalculation. java //The Recursive fFectorial Method blic class FacterialCalculation public long facterialftong nuaber) if (nueber1) return 1j return number factorial (nunber 1 else /Now output the facterials of through 15 public void displayFacteriats) / Calculate the factorial of o through 10 forint counter e counter 10 counters) yste.out:rin d iseacovnter, facteriat (counter end of class FactorialCalculatio ) Example 1b: FactorialTest.java // Tests g the recursive factorial sethod public class FactorialTest // calculate the factorial of ne Public static void sain String args factorialCalculation factorialCalculation a new FactorialCalculation factorialCalculation.displayFactorials) end of main end of the class FactorialTest Use a java editor to vrite and execute the example given above. Copy your source code as well as the eutput as an snage te a word precessor 2. Write another methodrthat uses loop, instead of recursion, to calculate the factorial of the previous exanple. Recursive and Iterative Activities: use the tise method (ayaSxmRCCeDTTAneMAto compare execution tises for the two nethods (3) the recursive versios and (4) the loop versios) vhen calcelating 1s 30: 501 90! 4. Draw a graph that shows the difference in time for the method for values in part 3 Notez ry ARAR