Instructions from your teacher: Write a Java program that prompts the user to enter an integer N and then displays the first N prime numbers. Show a maximum of 10 numbers per line with a spacing of 5; all numbers should be left-aligned. Sample test cases are shown below: 4 The first 4 prime numbers are 2 3 5 7 20 The first 20 prime numbers are 29 2 7 11 13 17 19 23 31 37 41 43 47 53 59 61 67 71 1-1 LO
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- java Write an application that asks a user to type an even number or the sentinel value 999 to stop. When the user types an even number, display the message “Good job!” and then ask for another input. When the user types an odd number, display an error message, "x is not an even number", and then ask for another input. When the user types the sentinel value 999, end the program. The EvenEntryLoop program displays the proper message for each input. Checks Test CaseIncomplete Single even number input 2, 999, test 1 Test CaseIncomplete Single even number input 5, 999, test 2 Test CaseIncomplete Multiple mixed number input 13, 3487, 987, 1234, 999 import java.util.*; public class EvenEntryLoop { public static void main (String args[]) { // Write your code here } }In Java Write a Java Program to find the factorial of a number. The factorial of nonnegative integer n (denoted by n!) is the product of all positive integers less than orequal to n. Example: 4! = 4 × 3 × 2 × 1 = 24. The value of 1! Is 1 and the value of0! Is 1 too. Do not accept negative numbers.Sample Run:Enter a positive integer: -1Invalid entry.Enter a positive integer: -15Invalid entry.Enter a positive integer: 5Factorial of 5 = 120IN JAVA. Write a program that takes in an integer in the range 20-98 as input. The output is a countdown starting from the integer, and stopping when both output digits are identical. Ex: If the input is: 93 the output is: 93 92 91 90 89 88 Ex: If the input is: 77 the output is: 77 Ex: If the input is: 15 or any number not between 20 and 98 (inclusive), the output is: Input must be 20-98
- JAVA: Write a program that reads an integer and prints how many digits the number has, by checking whether the number is ≥ 10, ≥ 100, and so on. (Assume that all integers are less than ten billion.) If the number is negative, first multiply it with –1.JAVA Where is the problem in the following code sequence? The code is intended to generate random numbers between 1 and 10 until the number is either a 7 or a 5. Fix the problem. Random random = new Random(); int number = 1 + random.nextInt(10); while(number != 7 || number != 5) { number = 1 + random.nextInt(10); } System.out.println("number is " + number);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 =…
- This is the question I am struggling with - Write a program that inserts parentheses, a space, and a dash into a string of 10 user-entered numbers to format it as a phone number. For example, 5153458912 becomes (515) 345-8912. If the user does not enter exactly 10 digits, display an error message. Continue to accept user input until the user enters 999. This is what I am given - import java.util.*; public class PhoneNumberFormat { public static void main(String[] args) { // Write code here } }Write a Java program that reads two positive integers num1 and num2 (assume num1 < num2). Then, the program will display all perfect numbers between num1 and num2. A positive integer is called a perfect number if it is equäl to the sum of all of its positive divisors, excluding itself. For example, 6 is the first perfect number because 6 = 3 + 2 + 1. The next is 28 = 14 + 7 + 4 + 2 + 1. Hint: use modulus (%) to find the divisor of a number. Sample Input/Output Enter two numbers: 6 1001 6 is a perfect number 28 is a perfect number 496 is a perfect number Note: Your answer should follow the given sample input / output.Write a complete Java program that performs the following tasks: Ask the user to enter the last two digits of his/her student ID. Break the number into two digits using arithmetic operators, then store the first and second digits in integer variables named digit1 and digit2 Find and print the following: The product of digit1 and digit2. The sum of digit1 and digit2 The average of digit1 and digit2 The maximum of the two numbers; digit1 digit2 using a method from the class Math. Note: The class name of your Java program must be your first name. Your answer should have the code as text as well as the screenshot of the program output (using your own student ID) as a part of your answer. Otherwise, zero marks will be awarded.
- Write an application that reads an integer value from the user and prints the sum ofall even integers between 2 and the input value, inclusive. Print an error message ifthe input value is less than 2. Use Java. Sample Run Examples: Example 1:the user enters 14Output: Sum: 56Example 2:the user enters 1Output: Error number must be greater than 1Write a java program that uses isPrime() to find a factor of the number n, if the factors are greater than 2, return that the number is not prime. Otherwise to return that the number is prime. The method is called in the program that prompts the user to enter a number and displays to the user whether the entered number is prime or not. public static void isPrime(int n) { //This is a segment of a program that you need to write and run } ******WRITE THIS IS JAVA PLEASEWrite a Java program that prompts user for a positive integer ranging between 0-99999. The program shallread the input as int; compute and print the sum of all its digits. Your program needs to perform inputvalidation and exit the program if the input data type is incorrect. For example,Enter a positive integer: 12345The sum of all digits is: 15