SING JAVA Write a method intToWeekDay(integer) that returns a week day if integer is belongs to {0,1,...,6} by using enumeration type. For example, calling intToWeekDay(0) returns "Sunday".
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USING JAVA
Write a method intToWeekDay(integer) that returns a week day if integer is belongs to {0,1,...,6} by using enumeration type. For example, calling intToWeekDay(0) returns "Sunday".
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- All coding is done in Java, using IntelliJ Idea. 3. Charge Account Validation Create 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 1302850 8080152 4562555 5552012 5050552 7825877 1250255 1005231 6545231 3852085 7576651 7881200 4581002 These numbers snould be stored in an array or an ArrayList Object. Prompt the user to choose search methodology between sequential/linear search, and binary search before the search is performed. Have the search 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…Please do this in Java! 13. isPrime Method A prime number is a number that is evenly divisible only by itself and 1. For example, the number 5 is prime because it can be evenly divided only by 1 and 5. The number 6, however, is not prime because it can be divided evenly by 1, 2, 3, and 6. Write a method named isPrime, which takes an integer as an argument and returns true if the argument is a prime number, or false otherwise. Demonstrate the method in a complete program. Additional requirements: Welcome the user with a message that you read from a file called "input.txt". ( inpu.txt file contains numbers between1-100.) Write the results to the terminal and also to the output file called, "output.txt" and remind the user to look at that file if he/she wants to. You only need to submit the designs, input/output files ( if applicable ) source code ( .java and not the project or the .class ) files of all the classes you'll implement and the driver program for the problem. ( Do not submit…In this exercise, you have to implement a calculator which can perform addition, subtraction, multiplication, and division. Problem Statement# Write a Java class called Calculator with ● private fields: ○ num1 and num2 (double type) And methods: ● add(), a method which returns the addition of two numbers ● subtract(), a method which returns the subtraction of num1 from num2 ● multiply(), a method which returns the multiplication of numbers ● divide(), a method which returns the division of num2 by num1 ● Define a parameterized constructor which takes two parameters num1 and num2 and assigns these variables to the respective fields in the class. Input# Pass double point numbers in the parameterized constructor Output# addition, subtraction, division, and multiplication Sample Input# Calculator obj = new Calculator(10, 94); obj.add() obj.subtract() obj.multiply() obj.divide() Sample Output# 104 84 940 9.4 Part of the Solution class Calculator { // write class fields here public…
- In Java (Use the isPrime Method) PrimeNumberMethod.java, provides the isPrime(int number) method for testing whether the number is prime. Use this method to find the number of prime numbers less than 10000. Below are some clarifications for the Java program (a) The lab is to COUNT the prime numbers less than 10000. Do NOT list the prime numbers. (b) A pair prime is two prime numbers whose difference is 2. For e.g. 3,5; 11,13; 17, 19; etc. We can use IsPrime function to count how many pair primes are there in a range from 2 to 100 for example. Create a function pairPrime, that takes one argument. pairPrime should return the number of pair primes between 2 and the argument passed. Use the pairPrime function to count the pair primes between 2 and 1000. Make use of the IsPrime function to solve this task. (This feature is worth 8 points). Use the compile/run button to test tour program. Include the output displayed. It will be similar to: command>javac…in computer programming: java Create a rectangle class that can compute the area and the sum of its sides. Create a specialized method that will allow the class to compare other rectangle objects. The comparison should identify the larger rectangle according to the object’s area. You should be able to implement the class where the user provides rectangle dimensions. The program should be able to display which of the rectangle inputs is larger using the Rectangle class method that you defined. Sample output: Enter Length R1: 1 Enter Width R1: 1 Enter Length R2: 2 Enter Width R2: 2 Results: R1 Area: 1 R1 Sum: 2 R2 Area: 4 R2 Sum: 4 R2 is the bigger Rectangle! Note: All characters in boldface are user inputs.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."
- in java Write a class phone that storesName (String) and number of friends (String),Provide appropriate methods In the main program create an array of at least 10 string objects that hold people’s names and phone numbers. You may make up your own strings, or use the following:"Alejandra Cruz, 555-1223""Joe Looney, 555-0097""Geri Palmer, 555-8787""Li Chen, 555-1212""Holly Gaddis, 555-8878""Sam Wiggins, 555-0998""Bob Kain, 555-8712""Tim Haynes, 555-7676""Warren Gaddis, 555-9037""Jean James, 555-4939""Ron Palmer, 555-2783"The program should do following • Display whole phonebook• Number of all those friends name starting with ‘a’.• Name of friends with phone numbers starting with 455.• Number of all those friends name ending with ‘s’.• Number of friends having “palmer” in name.• Enter a name or partial name to search for in the array. Any entries in the array that match the string entered should be displayed. For example, if the user enters “Palmer” the program should display the…In Java Write a RainFall class that stores the total rainfall for each of 12 months into anarray of doubles. The program should have methods that return the following: Total rainfall for the year, The average monthly rainfall The month with the most rain The month with the least rainThe program should not accept negative numbers for monthly rainfall figures.You may use the following main function to test the methods:public static void main(String[] args) { // Array with this year's rainfall data double[] thisYear = {1.6, 2.1, 1.7, 3.5, 2.6, 3.7, 3.9, 2.6, 2.9, 4.3, 2.4, 3.7 }; int high; // To hold the month with the highest amount int low; // To hold the month with the lowest amount // Display the total rainfall. System.out.println("The total rainfall for this year is " + getTotalRainFall(thisYear)); // Display the average rainfall. System.out.println("The average rainfall for this year is " + getAverageRainFall(thisYear)); // Get and display the month with the highest rainfall.…Java: Class: WordCount Write a method using the header below (remember your Javadoc comment) public static int countWords(String str) that returns a count of all words in the string str. Words are separated by spaces. For example, countWords("Mary had a little lamb") should return 5. Your method should work correctly if there are multiple spaces between words. Use helper methods to find the position of the next space following a given position, and the position of the next non-space character following a given position. Write a test program [main()] to test the method.
- In ArrayUtility class, create a public static method equals that receives two arrays of int's and returns true if they have the same length and equal corresponding elements. In ArrayUtilityTest class, create a public static method equalsTest that prints the results for the following 6 cases: two empty arrays, one empty and one singleton, two singleton with the same element, two singleton with different elements, two arrays with two identical elements, two arrays with two different elements. Call only this class in the main method and check the results. In ArrayUtility and ArrayUtilityTest, design, implement and test a method named isSorted that checks if an array of int-s is already sorted, i.e. all the elements are in increasing order. In ArrayUtility and ArrayUtilityTest, design, implement and test a method named generateIntArray that generates a random array with the provided length having elements randomly generated between a minimum and maximum value, including those values create…HangmanAA.java For this program, you will create the game Hangman. (If you are unsure of how to play Hangman, Google it.) The game will start by asking player 1 for a word or phrase (can be multiple words). Then player 1 will be asked how many missed guesses are allowed by player 2. Once this information is received, player 2 will take over. (Have the program print many blank lines of space so that player 2 can’t see what player 1 entered.) The instructions should be displayed for player 2 as well as the number of misses they’re allowed to make before they lose the game. The screen should also output dashes or underscores to represent each letter of player 1’s secret word/phrase. Player 2 should guess one letter at a time. Case should not matter. Typing x or X should give the same result. If that letter is present in the mystery phrase, then it should be displayed. (It will replace the dash/underscore in that spot. Spaces, punctuation, and all other non-alphabetic characters should…basic java please Write a method called findTip that finds the value of a meal as a double after adding the tip to the cost. Then return this value to the calling function. For example findTip(120.10, 5) would 126.105 because that is a 5% tip. While findTip(48.0, 15) would return 55.2 because that is a 15% tip. Note that the bill is a double while the tip is an int. Don’t worry about rounding to two decimal places, just return the full value as a double.