Write a simple game in Java named GuessNumber.java to run on the command line.  This program asks user to pick a number and the computer guesses the number repetitively until the guess is correct. Allow the user to set the lower and upper bound as command line parameters from where the picks the number.  If no command line parameters are specified then the program uses a default of 1 to 99. Clue is using a do-while loop

Using C#, write a console based application that takes one integer from user’s input and calculate the number of 0 contained in the factorial.  For example, if users’ input is 10, then the factorial of 10 is 5!=10*9*8*7*6*5*4*3*2*1 = 3628800 So, the number of 0s is 2.

Write a program that asks the user to enter 10 numbers, that range from 10-100. Make sure that you do not accept any numbers less than 10, if a user enters a number that is less than 10 then ask him again. Once the user enters all 10 numbers, sort the numbers entered in ascending order and print them out. CSharp

Write a complete program to generate a username based on a user's first and last name.  Part One: Get a Valid First and Last Name  ask the user for and read in their first and last name use a loop to validate the first name: it must be at least one character long and it must start with a letter use a loop to validate the last name: it must not contain any spaces Hint: use a nested loop. The outer loop will iterate until there is valid input. The inner loop will check each character in the String to see if any of them are whitespace. Part Two: Generate a Username  generate a two-digit random number (i.e., a random number between 10 and 99, inclusive) create a username that is the following data concatenated: the first letter of their first name in lower case the first five characters of their last name in lower case; if the name is shorter than five characters, use the whole last name the two-digit number output the username to the user Additional Coding Requirements  code…