java programs Perfect Numbers Write a method isPerfect that determines whether parameter number is a perfect number. Use this method in an application todisplays all the perfect numbers between 1and1000. Display  factors of each perfect number and confirm number is "perfect."

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JavaDriver Program Write a driver program that contains a main method and two other methods. Create an Array of Objects  In the main method, create an array of Food that holds at least two foods and at least two vegetables. You can decide what data to use. Method: Print  Write a method that prints the text representation of the foods in the array in reverse order (meaning from the end of the array to the beginning). Invoke this method from main. Method: Highest Sugar Food  Write a method that takes an array of Food objects and finds the Food that has the most sugar. Note that the method is finding the Food, not the grams of sugar. Hint: in looping to find the food, keep track of both the current highest index and value. Invoke this method from main.

Given code: int s=0; for ( int i=1;  i<5;  i++ ){       s = s + i ; }   Which one is correct, after running the code. Group of answer choices s=1 s=15 s=10 s=5

In C# code: Write a program that will help an elementary schoolstudent learn multiplication. Use a Random object to produce two positive one-digitintegers. The program should then prompt the user with a question, such asHow much is 6 times 7 The student then inputs the answer. Next, the program checks the student’s answer. Ifit’s correct, display the message "Very good!" and ask another multiplication question.If the answer is wrong, display the message "No. Please try again." and let the studenttry the same question repeatedly until the student gets it right. A separate methodshould be used to generate each new question. This method should be called oncewhen the app begins execution and each time the user answers the question correctly.Program will stop any time students enter -1. One problem in CAI environments is student fatigue. This can be reduced by varyingthe computer’s responses to hold the student’s attention. The program should usevarious comments to be displayed for each…

Java Programming A bakery company provides a bonus of a new bakery product package for customers who buy at least 10 breads in the company anniversary award which will be celebrated in the next three months. To get the bonus, the customer is given the opportunity three times to guess a number determined by the application from numbers 1 to 20. For each guess number given by the customer, the application will respond as follows:• If the guessed number is smaller than the lucky number, you will see the words "Bigger Number"• If the guessed number is greater than the lucky number, you will see the words "Smaller Number"• If the guessed number is the same as a lucky number, it will match the words "Congratulations ... you found a LUCKY number"As part of the company's IT team, you serve to create a lucky number guessing game console.A. Determine the inputs and outputs of the design programb. Draw a Flowchart of the programc. Write Coding to make the applicationd. Give Screen shoot the…

Charge Account ValidationCreate a class with a method that accepts a charge account number as its argument. The method should determine whether the number is valid by comparing it to the following list of valid charge account numbers:5658845    4520125    7895122    8777541    8451277    13028508080152    4562555    5552012    5050552    7825877    12502551005231    6545231    3852085    7576651    7881200    4581002These numbers should be stored in an array. Use a sequential search to locate the number passed as an argument. If the number is in the array, the method should return true, indicating the number is valid. If the number is not in the array, the method should return false, indicating the number is invalid.Write a program that tests the class by asking the user to enter a charge account number. The program should display a message indicating whether the number is valid or invalid.

strobogrammatic number is a number that looks the same when rotated 180 degrees (looked at upside down). Find all strobogrammatic numbers that are of length = n. For example, Given n = 2, return ["11","69","88","96"]. def gen_strobogrammatic(n): Given n, generate all strobogrammatic numbers of length n. :type n: int :rtype: List[str] return helper(n, n) def helper(n, length): if n == 0: return [™"] if n == 1: return ["1", "0", "8"] middles = helper(n-2, length) result = [] for middle in middles: if n != length: result.append("0" + middle + "0") result.append("8" + middle + "8") result.append("1" + middle + "1") result.append("9" + middle + "6") result.append("6" + middle + "9") return result def strobogrammatic_in_range(low, high): :type low: str :type high: str :rtype: int res = count = 0 low_len = len(low) high_len = len(high) for i in range(low_len, high_len + 1): res.extend(helper2(i, i)) for perm in res: if len(perm) == low_len and int(perm) int(high): continue count += 1 return…

The program  must include  two classesclGradesGraph and GradesGrapghDemo. GradesGraphDemo (one method)- Main method only GradesGraph- Include at least 4 methods (No credits without at least 4 methods!!!) Create a class that represents the grade distribution for a given course. In this class you should write methods to perform the following tasks: Read the number of each of the letter grades A, B, C D and F Set the number of letter grades A, B, C, D and F Return the total number of grades Return the percentage of each letter grade as a whole number between 0 and 100 inclusive Draw a bar graph of the grade distributionThe graph should have five bars, one per grade. Each bar can be a horizontal row of asterisks, such that the number of asterisks in a row is proportionate to the percentage of grades in each category. For example, let on asterisk represent 2%, so 50 asterisks correspond to 100%. Mark the horizontal axis at 10% increments from 0 to 100% and label each line with a letter…

2please write in C#