Explain the differences between 2, 2.0, '2', "2", and "2.0".
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Explain the differences between 2, 2.0, '2', "2", and "2.0".
Introduction
A data type is a classification of data that tells a program how the programmer intends to use the data. It is associated with a set of values and operations that can be performed on that data. Common data types include integers, floats, strings, booleans, and arrays. In most programming languages, data types are core components of the language, and must be explicitly declared before they can be used.
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- char xusername[10]; char xbankname[10]; int xaccountnum[4]; int xcardnum[14]; int xpass[4]; int xwalletnum[11]; int xOTP[4]; printf("Enjoy a range of our banking services including cash withdrawals and deposits, card and loan installment payments, bill payments, smart wallet recharge, and card-less services.\n\n\n"); printf("If you are bank staff press 1. \t\t\t If you are a customer press 2.\n"); int num;label0: scanf_s("%d", &num); if (num == 1) {//bank staff char bank_staff[10] = { "mahmoud" }; char xbank_staff[10]; int bank_pass[4] = { 5,5,5,5 }; int xbank_pass[4]; int doha = 0; labelinf1: printf("Enter your name.\n"); scanf_s("%s", xbank_staff, 10); if (strcmp(xbank_staff, bank_staff) == 0) { printf("Enter your password.\n"); scan_array(xbank_pass, 4); for (int i = 0; i < 4; i++) { if (xbank_pass[i] == bank_pass[i]) {…1. Replace the (????) with relevant code to make th eprogram function. Details about the code are given below:(Java as been used) a) This program creates a reference to a file in main() and passes the reference to countWords() countWords(), not main(), reads the file and displays Total lines Total words Average words per line */ package finalexamtakehome1; import java.io.*; /** * * @author sweetkim */ public class Finalexamtakehome1 { // public static void countWords(????) { int lineCount = 0; int wordCount = 0; while (????()) { String line = input.nextLine(); lineCount++; Scanner lineScan = new Scanner(line); while (????()) { String next = lineScan.next(); wordCount++; } } double averageWords = (double) wordCount / lineCount; System.out.println("Total lines = " + lineCount); System.out.println("Total words = " + wordCount); System.out.printf("Average words per line =…Replace (????) with relevant code for the program to function. Details about the programs are provided below. (Jav has been used). Show the output. a)This program prints four lines: kimarr() 4 [9, 0, 0, 14] 2 [9, 0, 0, 14] kimarr() 8 [9, 9, 14, 14] 4 [9, 9, 14, 14] */ package finalexamtakehome2; import java.util.*; // for Arrays class /** * * @author sweetkim */ public class Finalexamtakehome2 { // public static void kimarr(int x, int[] a) { x = x * 2; if (x > 6) { a[2] = 4; a[1] = 9; } else { a[0] = 9; a[3] = 1; } System.out.println("kimarr() " + x + " " + Arrays.toString(????)); } // public static void main(String[] args) { int x = 1; int[] a = new int[4]; x = x * ????; kimarr(x, a); System.out.println(x + " " + Arrays.toString(????)); x = x * 2; kimarr(x, a); System.out.println(x + " " +…
- Need help in java please I am doing a program that uses the insertionsort() method. The output should look like this insertionsort() Test: BEFORE: [42, 23, 20, 46, 90, 53, 13, 24, 74, 100] BEFORE: [byzantine, iceberg, yellow, dark cyan, antique bronze, dark slate gray, telemagenta, jet, dark red, red salsa] AFTER: [13, 20, 23, 24, 42, 46, 53, 74, 90, 100] AFTER: [antique bronze, byzantine, dark cyan, dark red, dark slate gray, iceberg, jet, red salsa, telemagenta, yellow] Numbers Result Correct?: true Colors Result Correct?: true however I have this error and I'm unsure if I'm doing it right, I provided my code and the output I get please help mePlease answer the question and explain why. 3. What is wrong with the following program and how should it be fixed? 1 public class MyClassD { 2 public static void main (String args []) { 3 MyClassC m = new MyClassC (23); 4 } // end main 5 } // end class MyClassD 6 7 class MyClassC { 8 int v = 12; 9 10 public MyClassC (int pV) { 11 int v = pV; 12 } 13 14 } // end class MyClassCQuestion 2 Which among the following best describes encapsulation?
- A. What does the following JavaScript code do?let titles = "Mr.|Mrs.|Miss|Ms.|Dr.";let spotTitle = new RegExp(titles, "g"); a. creates a text string and stores it in the variablespotTitle b. defines a regular expression with a global flag by creating an object constructor c. defines a function to search for the substrings"Mr.","Mrs.","Miss","Ms.", and"Dr." d. throws an error because it attempts to enclose a regular expression in quotation marks instead of forward slashes B. Which of the following regular expressions will match both the substring "cat" (part of the word “catering”) and the substring "Cat" in the string "For your catering needs, call Cat!"? a. /cat/ig b. /cat/g c. /cat/ d. / cat /3.21 In Java Primary U.S. interstate highways are numbered 1-99. Odd numbers (like the 5 or 95) go north/south, and evens (like the 10 or 90) go east/west. Auxiliary highways are numbered 100-999, and service the primary highway indicated by the rightmost two digits. Thus, I-405 services I-5, and I-290 services I-90. Given a highway number, indicate whether it is a primary or auxiliary highway. If auxiliary, indicate what primary highway it serves. Also indicate if the (primary) highway runs north/south or east/west. Ex: If the input is: 90 the output is: I-90 is primary, going east/west. Ex: If the input is: 290 the output is: I-290 is auxiliary, serving I-90, going east/west. Ex: If the input is: 0 or any number not between 1 and 999, the output is: 0 is not a valid interstate highway number.1)- What is meant by a dynamic array, and write a line of C++ code to create a dynamic array of 10 doubles. 2)-What is a constructor? 3)-What is meant by the prototype method of software development?
- 47. What statement of the following is the most appropriate? Group of answer choices The node class defined in the textbook can be implemented as a template class, providing more limitation to implement other container classes. The node class defined in the textbook can be implemented as a template class, providing more memory leak possibility to implement other container classes. The node class defined in the textbook can be implemented as a template class, providing more flexibility to implement other container classes. The node class defined in the textbook can be implemented as a template class, providing more tool box to implement other container classes. The node class defined in the textbook can not be implemented as a template class.7.21 LAB: Random values use Java. In the file RandomNumbers.java, write a class called RandomNumbers that has three integer instance variables: var1, var2, and var3. Write getter method for each variable: getVar1(), getVar2() and getVar3(). Then write the following 2 instance methods: setRandomValues( ) - accepts a low and high integer values as parameters, and sets var1, var2, and var3 to random numbers (generated using the Random class) within the range of the low and high input values (inclusive). getRandomValues( ) - prints out the 3 random numbers in the format: "Random values: var1 var2 var3" Ex: If the input is: 15 20 the output may be: Random values: 17 15 19 where 17, 15, 19 can be any random numbers within 15 and 20 (inclusive). Note: When submitted, your program will be tested against different input range to verify if the three randomly generated values are within range. import java.util.Scanner; public class LabProgram {// main method used to test your codepublic…Write a code in c++ to calculate area of triangle (A=1/2 ???ℎ? ∗ ????ℎ). Take objects of class and pass static value to set parameter. By overloading binary operator “_”to subtract the values of two objects. At the end calculate area of triangle by using these value and display it