1. The main method will do the following: · Asks the user for first name, last name, and secret number using Scanner. (first letter Call defaultInfo (String, String) method to PRINT default Kean email address Note: You are using overloaded methods (i.e., same method name with different can be in upper case) Call defaultInfo (String, int) method to PRINT default Kean password parameter lists) 2. Write an overloaded method, defaultInfo, which does the following: public static void defaultInfo (String firstName, String lastName) [Note: you can use your own variable name] print default Kean email address all in low caps: concatenate first letter of firstName, full lastName, and @kean.edu. [Hint: string.charAt(index), string.toLowerCase)1 public static void defaultInfo (String firstName, int secret) [Note: You can use your own variable name] print default password all in low caps: concatenate the full firstName in reverse order and the secret number). [Hint: use a loop, string.lengthO, string.charAt(index), string.toLowerCase()] 3. More useful hints on the next page. Two Sample Runs: Enter first name: Daehan Enter last name: Kwak Enter secret number: 2018 Kean email: dkwak@kean.edu Kean password: nahead2018 Enter first name:Micheal Enter last name: Jordan Enter secret number: 23 Kean email: miordan@kean.edu Kean password: laehcim23

Help me modify my MaxSentinel Java Program(Attached image & Pasted Java Code) into a new program called MaximumSent... 1. Check for valid first entry. Then allow the user to enter as many numbers as desired. 2. If invalid number entered, print "Invalid entry." Prompt the user again until a valid number is entered.  3. Once -1 is entered, program stops and prints the largest number entered. Submit final code.   JAVA CODE for MaxSentinel, has been pasted below: (also view attached images) import java.util.Scanner; public class MaxSentinel{   public static void main(String[] args) {       Scanner input=new Scanner(System.in);       int num=0,max=-1;       System.out.print("Enter positive integers(-1 to stop):");       num=input.nextInt();       while(num!=-1)       {           if(num>max)               max=num;           System.out.print("Enter positive integers(-1 to stop):");           num=input.nextInt();       }       System.out.println("Largest number: "+max);   }}

Write a program TwoSmallest.java that takes a set of double command-line arguments and prints the smallest and second-smallest number, in that order. It is possible for the smallest and second-smallest numbers to be the same (if the sequence contains duplicate numbers). Note: display one number per line. Hint: Double.MAX_VALUE is the largest real number that can be stored in a double variable.

Write a program CheckDigit.java that takes a 12 or 13-digit long as a command-line argument and displays the digit computed as follows: Take for an example the number 048231312622 Sum every other digit of the code, starting from the right.  In the example, that is 2 + 6 + 1 + 1 + 2 + 4 = 16.  Discard the tens digit and keep the ones digit, 6.  Start with the second to last digit and do the same thing.  Sum the digits, discard the tens digit and keep the ones digit.  In this example this is 2 + 2 + 3 + 3 + 8 + 0=18.  Discarding the 10 leaves 8.  Multiply this number by 3 and again discard the tens digit.  8×3 = 24, leaving 4. Add the numbers from steps 1 and 2.  Again drop the tens digit.  6 + 4 = 10, leaving the digit 0 (zero). Hint 1: the maximum value that can be stored in an integer variable is 2147483647 which is only 10 digits long. To read a 12 or 13-digit integer from command line argument you will need to store it in a long variable. Use: long number =…

in Java please with comments. thank you!

This assignment is specifically designed to help you practice writing short Java programs and executing them at the command line. You are given a sample program and a description of what it is supposed to do. But there are errors, so you need to fix the errors and run the program. Start by launching a text editor, save the file as "Payroll.java" into your IST140 directory. Here is the code for your program (don't try to copy and paste, it will include unprintable characters and you will have errors when you compile): public class Payroll{ public static void main(String[] args) { double hrlyWage, hrsWorked, salary; hrlyWage 15.5; HrsWorked = 20; } } //Bug here salary hrlyWage + hrsWorked; // Bug here System.out.print("Salary: $" + salary); Save the file when you are done adding the code from above. Then, navigate back to the command window. Now if you type 'dir' on a windows machine (or Is on a mac), you should see the new file. Compile the new program using javac Payroll.java After it…

In Java Only: My program is not working correctly, The history teacher at your school needs help grading a true/false test.The student's IDs and test answers are stored ina file, The first entry in the file contains the answers to the test in the following form: TFFTFFTTTTFFTFTFTFTT Every other entry in the file is the student;s ID, followed by a blank, followed by the student;s response. For example, the entry: ABC54301 TFTFTFTT TFTFTFFTTFT indicstes that the student;s ID is ABC54301 and the answer to question 1 is True, the answer to question 2 is false, and so on. This student did not answer question 9. he exam has 20 questions, and the class has more than 150 students.  Each correct answer is awarded 2 points, each wrong answer gets -1 point, and no answer gets 0 points. Write a program that processes the test data. The output should be the student's ID, followed by the student's answers, followed by the test score, and then followed by the test grade. Here is my code, I keep…

Using the Java programming language write a program that takes an email address as an input from the keyboard and, using a loop, steps through every character looking for an @ sign. If the email address has exactly one @ character, then print a message that the email  address is valid; otherwise, print a message that it is invalid.

Write a GUI program on Java to play dice games between two players. The game starts with a coin toss determining who starts. Players roll the dice in turn to get the combination of the two dice. In each round the player with the lowest combination loses a “life” – each player starts with six lives. When the count of lives goes down to 0, the player is out of the game. If the player is not satisfied with the result of rolling, he/she may re-roll. If he/she wishes re-roll, the result of the second is the final.

Java: