Using the Random number object, create three numbers between 1 and 36 that will be the combination for a three number combination lock that has thirty-six possible numbers.  (Three numbers are entered one after the other and if the three are the correct ones, the lock will open. ) Write a java program to find the correct combination. That is your program will use nested loops to find by trying every possible combination until the number is found. (For example, try number 1-1-1 and then 1-1-2, 1-1-3 up to 36-36-36 unless you find it first.) See how long it takes for your program to find the user’s combination.

PrimeAA.java Write a program that will tell a user if their number is prime or not. Your code will need to run in a loop (possibly many loops) so that the user can continue to check numbers. A prime is a number that is only divisible by itself and the number 1. This means your code should loop through each value between 1 and the number entered to see if it’s a divisor. If you only check for a small handful of numbers (such as 2, 3, and 5), you will lose most of the credit for this project. Include a try/catch to catch input mismatches and include a custom exception to catch negative values. If the user enters 0, the program should end. Not only will you tell the user if their number is prime or not, you must also print the divisors to the screen (if they exist) on the same line as shown below AND give a count of how many divisors there are. See examples below. Your program should run the test case exactly as it appears below, and should work on any other case in general. Output…

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Write a program using while loop and for loops to print first 50 prime numbers in 5 lines, each line containing 10 numbers. 1. Create a program called CountCharacters.java. 2. At the top of your java file add the following documentation comments. Replace the italicized text with the appropriate content. /** @author Your Name CS 110 Section 012 Lab 9 Final Today's Date 3. Import the Scanner class and ask user to enter a line. Implement the while loop so that the user can input any number of lines and one line at a time. To stop entering lines, the user can write "quit. (Hint: Use the string method <str>.equals() in the while condition to stop the while loop OR a break keyword). 4. Implement the for loop inside the while loop to iterate through the line one character at a time to count and output the number of blank spaces, alphabetic characters, digit characters, and other characters in all the lines. You need to use different methods of character class like charAt(), isDigit(),…

JAVA   A perfect number is a positive integer that is equal to the sum of its positive divisors, excluding the number itself. A divisor of an integer x is an integer that can divide x evenly. Take an integer n as input from the keyboard, print true if n is a perfect number, otherwise, print false. You do not need to print any explanation, just print true or false. Use a for loop to generate the divisors. Example 1: Input: num = 28 Output: true Explanation: 28 = 1 + 2 + 4 + 7 + 14 1, 2, 4, 7, and 14 are all divisors of 28.   Example 2: Input: num = 6 Output: true   Example 3: Input: num = 496 Output: true         Example 4: Input: num = 8128 Output: true   Example 5: Input: num = 2 Output: false

JAVA Write a program that plays a number-guessing game to guess a secret number randomly generated within the range 1 and 10. The user will get as many numbers of tries as he/she needs to guess the number. Tell the users if their guess is right or wrong and if their guess is wrong let them try to guess the number again. You have solved a similar problem in a previous lab using a while loop.   You must generate the secret number using the Java Random class. When the user guesses a number he/she will have to take an input of his guessed number from the keyboard. The user will have to take as many inputs as needed to guess the correct secret-number. That means the code will keep looping as long as the guess is different from the secret number. You also need to count the number of tries and report the count at the end. Use a do-while loop to prompt the user to guess again if the guess is wrong. Make sure that it doesn't mess up the output if you guess the secret number on the first try.…