Java program I need help writing a program that has 3 methods: the main method, a method that swaps the digit pairs, and another method that swaps letter pairs. first you would ask the user for a number and call the method that swaps the digit pairs to swap the number shown in the picture. Then ask the user to input a string of letters and numbers and call the method that swaps lettter pairs to swap the letters as shown in the picture. in the method that swaps digit pairs, it accepts an integer for its parameter and then returns a new integer that has each pair of digits swapped in order. if it is an odd number of digits, leave the leftmost digit in its original place. the method that swaps digit pairs shouldnt use the string class. but for the swap letter pairs, it is similar operation as the swap digit pairs method but accepts a string as a parameter and return the swapped string. it can use string class.

Java Your program will read in a credit card number and expiration date from the user and validate the data. The program will continue to ask for user input until a valid number and date are entered. The rules for what is valid are specified below. readYear() and readMonth(int) methods  Complete the readYear() and readMonth(int) methods. These methods ask the user to input the expiration year and month of their credit card. Each method should contain a loop inside the method so the code repeats until a valid month or year is entered by the user. If the user enters an invalid year or month, print an error message and ask them to try again. The readMonth(int) method reads in the month as a number. A valid month is any number between 1 and 12 (inclusive). A valid year is 2022 or later. readCreditCardNumber() method  Complete the readCreditCardNumber() method. This method asks the user to input their credit card number. This method should contain a loop so the code repeats until a valid…

Write in JAVA When analyzing data sets, such as data for human heights or for human weights, a common step is to adjust the data. This adjustment can be done by normalizing to values between 0 and 1, or throwing away outliers. For this program, adjust the values by dividing all values by the largest value. The input begins with an integer indicating the number of floating-point values that follow. Assume that the list will always contain fewer than 20 floating-point values. Output each floating-point value with two digits after the decimal point, which can be achieved as follows:System.out.printf("%.2f", yourValue);

JAVA Practice Question for Midterm Write a class with a constructor that accepts a String object as its argument. The class should have a method that returns the number of vowels in the string, and another method that returns the number of consonants in the string. Demonstrate the class in a program by invoking the methods that return the number of vowels and consonants. Print the counts returned. Imagine you are developing a software package for an online shopping site that requires users to enter their own passwords. Your software requires that users’ passwords meet the following criteria:   The password should be at least six characters long. The password should contain at least one uppercase and at least one lowercase letter. The password should have at least one digit.   a program that asks the user to enter a password, then displays a message indicating whether it is valid or not.