Problem 2: Safe Square Root Write a program to take the square root of a number typed in by the user. Your program should use a while-loop to ensure that the number they typed in is positive. If the number is negative, you should print out a warning "The number is negative. Try again." and re-prompt the user to take a valid input. You can get the square root of a number n with Math.sqrt(n). Make sure you don't do this until the loop is done and you know for sure you've got a positive number. Sample input and output: Enter a number > -9 The number is negative. Try again. Enter a number > 9 The square root of 9 is 3.0 Enter a number > 2 The square root of 2 is 1.4142135623730951

"Simon Says" is a memory game where "Simon" outputs a sequence of 10 characters (R, G, B, Y) and the user must repeat the sequence. Create a for loop that compares each character of the two strings. For each matching character, add one point to user_score. Upon a mismatch, end the loop. Sample output with inputs: 'RRGBRYYBGY' 'RRGBBRYBGY' User score: 4 Learn how our autograder works 487180.3542414.qx3zqy7 1 user_score= 0 2 simon_pattern = input() 3 user_pattern input() 4 5 for i in range(len(simon_pattern)): 6 if simon_pattern[i] user_score=4 7 8 9 10 == user_pattern[i]:

Assignment4C: Heads or Tails? It is said that a perfectly fair coin will return heads 50% of the time, and tails 50% of the time. Rather than have you test this theory by flipping a coin yourself, let's use a random number generator and loops to determine the truth. Create a program that prompts the user for a number of coin flips. Then, "flip a coin" that many times by using a random number generator that produces either a 0 or 1. Afterwards, show the user how many times it landed on heads (0) and tails (1) and calculate the frequency for each. Inform the user if heads or tails was the more frequency result, or if they were equal. Call the file name Assignment4C (.java, .cs, .cpp) and the class name Assignment4C. Example outputs are shown below. Note that due to using a random number generator, you may not get the same numerical results – but the formatting and wording should be the same. User input is indicated in bold. Sample Output #1: How many times do you want to flip the coin?:...

In Java, If a semicolon is placed at the end of a for statement, the action of the for loop is empty. True or False

Java use While loop: Write a program that creates two random numbers, ask user to finde the sum of them, takes the user input, check if it true, if so print " You got it ", if not prints " try again ".