Exercise 5. Triangle Write a program that takes a single command-line argument, which is a number between 1 and 9, and prints a triangle such that the base of the triangle has all numbers from 1 to that number with spaces between numbers. An example of the system in operation is: > java Triangle 4 1 1 2 1 23 123 4 Exercise 6. Pyramid Write a program that takes in an odd positive integer n from the command line and draw a pyramid on the screen, with the highest level having 1 block, the 2nd 3 blocks, ..., and the last n blocks. An example in operation: > java Pyramid 7 Exercise 7. Scissor-Rock-Paper Game (Advanced Question) The rule for this popular game is: the scissor cuts the paper; the rock knocks the scissor; and the paper wraps the rock. Write a program to simulate the game. Your program: (1) randomly generates a number (0, 1, or 2) to represent scissor, rock, or paper; (2) prompts the user to enter "scissor", "rock", or "paper"; and (3) displays the computer or the user wins, loses, or draws