What does the following display? System. out.println("Sum of the 1st 4 numbera: 8 + 4); Nothing because "+ 1" produces a syntax error Nothing because "+ 1" produces a run-time error Sum of the lst 4 numbera: 10 Sum of the 1st 4 numbers: 1234
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- A Java Practical Assignments.pdf - Adobe Acrobat Pro DC (32-bit) File Edit View E-Sign Window Help Home Tools Java Practical Assig. x Sign In 1 /1 139% Java Practical Assignments 1. Write an application that throws and catches an ArithmeticException when you attempt to take the square root of a negative value. Prompt the user for an input value and try the Math.sqrt() method on it. The application either displays the square root or catches the thrown Exception and displays an appropriate message. 2. Create a program that allows a user to input customer records (ID number, first name, last name, and balance owed) and save each record to a file. 3. Write an application for Limpopo's Car Care Shop that shows a user a list of available services: oil change, tire rotation, battery check, or brake inspection. Allow the user to enter a string that corresponds to one of the options, and display the option and its price as R250, R220, R150, or R50, accordingly. Display an error message if the…Write an application that determines whether a phrase entered by the user is a palindrome. A palindrome is a phrase that reads the same backward and forward without regarding capitalization, spaces or punctuation. And it will allow the user to enter as many phrases as he likes after each iteration.1. Generate a number of random integer values within a given rangeRequirements: - Ask the user the following info: a. How many random numbers they would like to have b. What is the upper and lower limit (e.g. range)? - Generate that many random numbers within that given range - Do not accept negative values for the count, lower or upper limit Help: Here is a simple example on how to generate one random number #include <iostream>#include <ctime>using namespace std; int main(){ /* get the current system time and use it as the seed to generate*/ srand( time(0) ) ; /* retrieve the next random number */ int num = rand() ; /* print it out */ cout << "Random number: " << num << endl; return 0 ;}Note: you need to call "srand" only once (e.g. not inside a loop). Extend your random generating program to make sure that the numbers are unique. In another words, if the number has been generated and appear…
- Write an application that reads an integer and determines and prints whether it’s odd or even. [Hint: Use the remainder operator. An even number is a multiple of 2. Any multiple of 2 leaves a remainder of 0 when divided by 2.]X609: Magic Date A magic date is one when written in the following format, the month times the date equals the year e.g. 6/10/60. Write code that figures out if a user entered date is a magic date. The dates must be between 1 - 31, inclusive and the months between 1 - 12, inclusive. Let the user know whether they entered a magic date. If the input parameters are not valid, return false. Examples: magicDate(6, 10, 60) -> true magicDate(50, 12, 600) –> falseWrite an application that counts by five from 5 through 500 inclusive and that starts a new line after every multiple of 50 (50,100,150 and so on).Save the file as CountByAnything.java
- Please include a gui for the encryption and decryption java code. Example of the gui in the photos Java encryption and decryption code below import java.util.*; public class Main { //Inputs a one character string and returns True if the character is a letter (i.e. a to z or A to Z). Returns false if it is not. A function to check that the password or encryption key is valid. public static boolean isALetter(char letter){ if( (letter >= 'a' && letter = 'A' && letter =-32767 && encryptKeyWhat is wrong in the following code?try:# Some code here...except ArithmeticError:print("ArithmeticError")except ZeroDivisionError:print("ZeroDivisionError")print("Continue")Task3: Program an encryption tool that uses XOR operation to encrypt the message. (Note: the key should be numerical) Hint': you must encrypt all letters of the "plaintext" variable. Hint?: you have to iterate through all letters to encrypt them. Hints: you can use ord() method, to receive each character Unicode https://careerkarma.com/blog/python-ord/ "The text to be encrypted" plainTxt key = "432457" %3D Here's the output: [W@VJAG]VVPZPOL[CFPP plainTxt = "The text to be encrypted" key "theKey" %3D The key must be numbers
- Choose the correct answer int a = 11, b = 22, c = 33, d=1003; d = d - ((a * a + b - c) + (c - a) * b); if (d < a) Console.WriteLine("The value of D is less than A"); else Console.WriteLine("The value of D is greater than A"); Select one: O The value of Dis less than A O The value of D is greater than A O Program Error O No outputTask 5: ScanningMoney.java Write a program that reads User Input using the Scanner class. Your program should ask the user how many quarters, nickels, dimes, and pennies they have, then display the total amount in dollars. This can be done in main method. Expected Output The highlighted text denotes text that you type into the console yourself. It is not printed by the program. Due to floating point values being used your answer may have the trailing 1 or not. ----JGRASP exec: java ScanningMoney Quarters: 4 Dimes: 3 Nickels: 2 Pennies: 1 You have $1.4100000000000001 ----JGRASP: operation complete.Print "userNum1 is negative." if userNum1 is less than 0. End with newline. Assign userNum2 with 4 if userNum2 is greater than 9. Otherwise, print "userNum2 is less than or equal to 9.". End with newline. 1 import java.util.Scanner; 2 public class UserNums { public static void main (String [] args) { int userNum1; int userNum2; 4 6. 7 Scanner input userNum1 = 8. = new Scanner(System.in); input.nextInt(); input.nextInt(); 9. 10 userNum2 11 12 V* Your code goes here */ 13 System.out.println("userNum2 is " } 14 + userNum2); 15 16 17 }