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- Do not use regular expressions in your solution for this exercise. Write a program that checks to see if an input password is valid or not. In this exercise, a valid password has the following characteristics: It contains at least eight characters. It contains at most 12 characters. It contains only alphabetic characters, digits and the underscore (‘_’) character. It does not start with a digit. It has a mix of upper-case and lower-case characters. Your class must contain the following method: public static String checkPassword(String input) This method receives a possible password as input and returns only the String“OK” if the password is valid. If the password is not valid then you can return the reason(s) for that as the return value. This is not a part of the requirements, however, and you don’t need to do that. You can simply return null for an invalid password.Program 1: Write a program that asks the user to input a sentence and then outputs the sentence back with the case of every character reversed. So for example: “CaTs RuLe!” would be given back as “cAtS rUlE!” . Spaces and punctuation should be left in place. You can use the Character class static functions to test the case of each letter. You do not need to place any code in static methods (besides the main method), you do not need to worry about try/catch blocks, and you do not need to make the program run more than once. in java9. answer previous chapters, you continued to modify the MarshallsRevenue program. Now, modify the program so that the major functions appear in the following individual methods: GetMonth - This method prompts for and returns the month GetNumMurals - This method prompts for and returns the number of murals scheduled and is called twice -- once for interior murals and once for exterior murals ComputeRevenue - This method accepts the number of interior and exterior murals scheduled, accepts the month they are scheduled, displays the interior and exterior prices, and then returns the total expected revenue DataEntry - This method fills an array with customer names and mural codes and is called twice -- once to fill the array of interior murals and once to fill the array of exterior murals GetSelectedMurals - This method continuously prompts for mural codes and displays jobs of the corresponding type until a sentinel value is entered. using System; using static System.Console; using…
- Suppose variable1 and variable2 are two variables that have been given values.How do you test whether they are equal when the variables are of type int? Howdo you test whether they are equal when the variables are of type String?A class-level variable Choose all that apply. a. holds return values b. holds input values | c. is only scoped to methods. d. is mostly used for constants, variables that never change from their initial value e. can be used in computationsprevious chapters, you continued to modify the MarshallsRevenue program. Now, modify the program so that the major functions appear in the following individual methods: GetMonth - This method prompts for and returns the month GetNumMurals - This method prompts for and returns the number of murals scheduled and is called twice -- once for interior murals and once for exterior murals ComputeRevenue - This method accepts the number of interior and exterior murals scheduled, accepts the month they are scheduled, displays the interior and exterior prices, and then returns the total expected revenue DataEntry - This method fills an array with customer names and mural codes and is called twice -- once to fill the array of interior murals and once to fill the array of exterior murals GetSelectedMurals - This method continuously prompts for mural codes and displays jobs of the corresponding type until a sentinel value is entered. using System; using static System.Console; using…
- Write the following function to draw a regular polygon:def drawPolygon(x = 0, y = 0, radius = 50, numberOfSides = 3):The polygon is centered at (x, y) with a specified radius for the bounding circle for the polygon and the number of sides. Write a test program that displays a triangle, square, pentagon, hexagon, heptagon, and octagon, as shown in Figure 6.12a.a) Write a program for an artist who is creating art instillation “experiences” consisting of rooms totally full of balloons that people will walk around in. Different instillations will be in different sized rooms and different sized balloons so need different numbers of balloons to fill them. The salesperson will enter the length, width and height of the room in centimetres. Write separate methods to input each of these values (they may possibly call other general methods) and return the results. These three numbers are multiplied together to get the volume of the room. This should by then be converted to m3 (calculated by dividing the volume by 1,000,000). This is then divided by the volume taken up by each balloon in m3 as given by the user. Print out the final number of balloons to be ordered along with the intermediate results as in the examples below. The final answer should be given as an integer (rounded down) as below. An example run of the program is as follows (numbers in…c. The Ghana Statistical Services (GSS) is interested in your statement in “b” above but it is of the view that it is too specific. They want you to modify it by creating a method that takes four arguments i.e. (the names of the two fertilizers and their individual yields). The methodsshould return the name of the fertilizer with the greatest yield. d. Using “c” above, write a program that requests for two fertilizer name and their respective yields. Your program should display the fertilizer with the most yield.e. Discuss your answer in “d” above.
- Part 2 - OddOrEven ClassIn bluej. Write a program that prompts the user to enter an integer. The program should display “The input is odd" to the screen if the input is odd and displays “The input is even" to the screen if the input is even. Hint: Consider using the mod (%) operator.Write a program in Java Write a program that has variables to hold three test scores. The program should ask theuser to enter three test scores and then assign the values entered to the variables. The programshould display the average of the test scores and the letter grade that is assigned forthe test score average. Use the grading scheme in the following table:Please create a code that follows the directions below exactly, and have the output look just like the one in the picture provided. If possible, please refrain from using switch statements in the code. Insturctions: This assignment will assess your understanding of void and value returning static methods. Your cousin owns an automotive maintenance shop that performs routine maintenance on cars. He has asked you to write a program that will provide a list of services (and their respective prices) to users and allow them to choose any, or all, services they would like and display the final price, including a 28% labor charge, a 9% markup if the car is an import, and an 8% sales tax. Task To accomplish the above, do the following: Write the two methods outlined below. Test your program and screenshot your successful test. carMaintenance method This method should accept the make of the car as a parameter (e.g., BMW, Ford, Ferrari, etc.). It should display the services and their prices as…