A company that wants to send data over the Internet has asked you to write a program that will encrypt it so that it may be transmitted more securely. All the data is transmitted as four-digit integers. Your application should read a four-digit integer entered by the user and encrypt it as follows: Replace each digit with the result of adding 7 to the digit and getting the remainder after dividing the new value by 10. Then swap the first digit with the third, and swap the second digit with the fourth. Then print the encrypted integer. Write a separate application that inputs an encrypted four-digit integer and decrypts it (by reversing the encryption scheme) to form the original number java programming

A company that wants to send data over the Internet has asked you to write a program that will encrypt it so that it may be transmitted more securely. All the data is transmitted as four-digit integers. Your application should read a four-digit integer entered by the user and encrypt it as follows: Replace each digit with the result of adding 7 to the digit and getting the remainder after dividing the new value by 10. Then swap the first digit with the third, and swap the second digit with the fourth. Then print the encrypted integer. Write a separate application that inputs an encrypted four-digit integer and decrypts it (by reversing the encryption scheme) to form the original number java programming

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter7: Characters, Strings, And The Stringbuilder

Section: Chapter Questions

Problem 9PE

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You are given a string. Get input from the user. In the first line, print the third character of this string. In the second line, print the second to last character of this string. In the third line, print the first five characters of this string. In the fourth line, print all but the last two characters of this string. In the fifth line, print all the characters of this string with even indices (remember indexing starts at 0, so the characters are displayed starting with the first). In the sixth line, print all the characters of this string with odd indices (i.e. starting with the second character in the string). In the seventh line, print all the characters of the string in reverse order. 8. In the eighth line, print every second character of the string in reverse order, starting from the last one. In the ninth line, print the length of the given string.
Here is the assignment Write a program that prints the multiplication table but inserts a randomly generated incorrect value between 1 and 50 into a cell whose row and column are randomly selected. Make sure the program does insert an incorrect value. For example, if row and column of 3 and 4 are randomly selected, keep generating a random number to print for that location until it's not the right value of 12. Then, ask the user to tell where in the table the incorrect number is located by entering the row and column of the incorrect number. Print whether the user was right or not. If he or she was right, ask for and read the correct value; if not, the program must give the correct location and the correct number. My main issue: is how to set up the multiplication table? I've only learned the basics in C++ (loops and if statements).
Write an application that allows a user to enter the names and birthdays of up to 10 friends. Continue to prompt the user for names and birthdates until the user enters the sentinel value “ZZZ” for a name or has entered 10 names, whichever comes first. When the user is finished entering names, produce a count of how many names were entered, and then display the names. In a loop, continuously ask the user to type one of the names and display the corresponding birthdate or an error message if the name has not been previously entered. The loop continues until the user enters “ZZZ” for a name. Save the file as BirthdayReminder.java.
Write a program that asks the user to enter 10 numbers, that range from 10-100. Make sure that you do not accept any numbers less than 10, if a user enters a number that is less than 10 then ask him again. Once the user enters all 10 numbers, sort the numbers entered in ascending order and print them out. CSharp
A number in base 2 (binary) is a number such that each of its digits is 0 or 1. To convert frombinary to decimal (base 10), the digits starting from the right are multiplied by powers of 2(starting at 0) and added. For example, the value in decimal of 10011 is calculated as follows: 1 ×20+ 1 ×21+ 0 ×22+ 0 ×23+ 1 ×24=19 Write a program that reads from the user a 5-digit integer representing a value in binary anddisplays its equivalent value in decimal. Note that if the user enters an integer which digits areother than 0 or 1, the program displays a message stating that the number is not valid.
Write a program that converts U.S. Dollar Amounts to different Cryptocurrencies by multiplying US Dollar amounts times conversion factors stored in named constants. Ask the user to enter the amount of money in U.S. Currency, then display the output of the conversions to the different cryptocurrencies listed below. The following conversion rates must be stored as named constants: 1 US Dollar = 0.00002306 Bitcoin (BTC)1 1 US Dollar = 0.01122814 Ethereum Classic (ETC)1 1 US Dollar = 2.07961078 Dogecoin (DOGE)1 1 US Dollar = 0.48910811 Cardano (ADA)1 Format your currency amounts in fixed point notation with two decimal places of precision, and be sure that the decimal point is always displayed.
This needs to be done in Java! A palindrome is a sequence of characters that reads the same backward as forward. For example, each of the following five-digit integers is a palindrome: 12321, 55555, 4554, and 11611. Write an application that reads in a five-digit integer and determines whether it’s a palindrome. If the number is not five digits long, display an error message and allow the user to enter a new value. Algorithm: Create two variables number and digits Capture the 5 digit number. Check If the number is not 5 characters long, display a message Use: while (digits != 5) Use if else statements: if (number < 100000) Set digits to 5 if > 9999 If not display statement letting the user know to enter correct 5 digit number Separate each digit: int digit1 = number / 10000; int digit2 = number % 10000 / 1000; int digit4 = number % 10000 % 1000 % 100 / 10; int digit5 = number % 10000 % 1000 % 100…
Write an application that allows a user to enter the names and birthdates of up to 10 friends. Continue to prompt the user for names and birthdates until the user enters the sentinel value ZZZ for a name or has entered 10 names, whichever comes first. When the user is finished entering names, produce a count of how many names were entered, and then display the names. In a loop, continuously ask the user to type one of the names and display the corresponding birthdate or "Sorry, no entry for name" if the name has not been previously entered. The loop continues until the user enters ZZZ for a name. import java.util.*; public class BirthdayReminder { public static void main(String[] args) { // Write your code here } }
Write an application that allows a user to enter the names and birthdates of up to 10 friends. Continue to prompt the user for names and birthdates until the user enters the sentinel value ZZZ for a name or has entered 10 names, whichever comes first. When the user is finished entering names, produce a count of how many names were entered, and then display the names. In a loop, continuously ask the user to type one of the names and display the corresponding birthdate or "Sorry, no entry for name" if the name has not been previously entered. The loop continues until the user enters ZZZ for a name.
You're interested in looking at trending Twitter hashtags, but you notice that people aren't very consistent with how they use them. Specifically, the capitalisation and punctuation in hashtags is inconsistent. You decide to write a program to read in tweets, normalise any hashtags present, and print out a tally of frequencies. Hashtags should only include words starting with #. All punctuation should be removed from the end of a hashtag, and the letters should be converted to lowercase. For instance, #Python! should be normalised to #python, and #Today_I_Learned... should be #today_i_learned. Your program should work like this. The tally of hashtags can be printed out in any order. Tweet: #Python is #AWESOME!Tweet: This is #So_much_fun #awesomeTweet: #python 1#awesome 2#so_much_fun 1
Write a program that reads a four-digit integer, such as 2014, and then displays it, one digit per line in reverse order, like so: 4 1 0 2 Your prompt should tell the user to enter a four-digit integer. You can then assume that the user follows directions. (Hint: Use the division andm remainder operators.)
Encryption is commonly used to disguise messages on the internet. A Caesar cipher performs a shift of all of the characters in a string (based on their ASCII values, see Table 1.2), e.g. h e l l o  m j q q t The example shows a shift with a distance of 5 characters, i.e. h(ASCII:104)  m(ASCII:109) Write a Python program that ask the user to input a line of plaintext and the distance value and outputs an encrypted text using a Caesar cipher, with the ASCII values range from 0 through 127. The program should work for any printable characters.