please help me see how many tokens will be generated How many tokens will be produced by the following Jack code? Do nottranslate into XML, just count tokens.Jack CodeHow many tokens are generated?var int x, y, greatest;let x = 3;let y=5;if (x > y)let greatest = x;{{314}elselet greatest=y;}Answer =do Output.printInt(greatest);do Output.println();

In Jack, tokens include:Keywords (var, int, let, if, else, do)Identifiers (variable names: x, y,…

Answered: How many tokens will be produced by the…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Integers numberOfParts, required Groups, and invalid Groups are read from input. If numberOfParts is 21 or more, then add 3 to requiredGroups. Otherwise, add 6 to invalidGroups. ► Click here for examples 3 public class GroupSurvey { 4 public static void main(String[] args) { Scanner scnr = new Scanner(System.in); int numberOfParts; int requiredGroups; I int invalidGroups; 345679 8 9 10 11 12 13 14 15 16 17 18 19 20 } numberOfParts = scnr.nextInt (); requiredGroups = scnr.nextInt (); invalidGroups = scnr.nextInt (); /* Your code goes here */ if(numberOfParts>21){ requiredGroups= System.out.println(requiredGroups); System.out.println(invalidGroups);
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Java - Encapsulation Create a class Point with attributes x and y which are both integers. Create getters and setters for these attributes and implement the following methods: 1. calculateDistance() - calculates the distance from the origin to the point. Returns a double, formula is sqrt(x^2 + y^2) 2. printCoordinates() - prints "(x,y)" Ask for user inputs for x and y. Use the methods printCoordinates() and calculateDistance() respectively. Inputs 1. X 2. Y Sample Output Enter x: 20 Enter y: 15 (20,15) 25.00
In Java: The CSV (or comma-separated values) format is commonly used for tabular data. Each table row is a line, with columns separated by commas. Items may be enclosed in quotation marks, and they must be if they contain commas or quotation marks. Quotation marks inside quoted fields are doubled. Here is a line with four fields:1729, San Francisco, "Hello, World", "He asked: ""Quo vadis?""" Implement a class CSVReader that reads a CSV file, and provide methodsint numberOfRows()int numberOfFields(int row)String field(int row, int column)
void getInput(){for(int i =0; i < studentName.length; i++){System.out.print("Student name: ");studentName[i] = keyboard.nextLine();System.out.print("Studnet ID: ");midTerm1[i] = keyboard.nextInt();}keyboard.close();} Can't put full student name becuase nextLine();
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The do-while in my code does not work. when I enter yes, I can't input the name of the customer, what could be wrong with the code? Also, when entering the wrong item code, I want it to display invalid output and the system will ask to perform another transaction. package cashier; import java.util.Scanner; class List { Scanner sc = new Scanner(System.in);private String name;private int item;private int[] des;private double price;private int[] quan;private double total;private double[] sum; public List(String name, int item, int[] des, double total, int[] quan, double[] sum) {this.name = name;this.item = item;this.des = des;this.quan = quan;this.total = total;this.sum = sum;}public void Input() {System.out.print("\n Enter name of customer: ");name = sc.nextLine();System.out.print(" Enter number of items: ");item = sc.nextInt();des = new int[item];quan = new int[item];sum = new double[item];total = 0; for (int i = 0; i < item; i++) {System.out.print("\n Enter item code: ");des[i] =…
Which XXX will complete the code to calculate c = a2 + b2 + 2ab ? public class MyCalc { public int powerSq(int num) { return num * num; } public int mult(int a, int b) { return a * b; } public static void main(String [] args) { int a = 1; int b = 2; int c; MyCalc myCalc = new MyCalc(); XXX }} answers: 1) c = powerSq(a) + powerSq(b) + 2 * mult(a); 2) c = powerSq(a, b) + powerSq(a, b) + 2 * mult(a, b); 3) c = myCalc.powerSq(a) + myCalc.powerSq(b) + 2 * myCalc.mult(a); 4) c = myCalc.powerSq(a) + myCalc.powerSq(b) + 2 * myCalc.mult(a, b);
Am I on the right track? I could use a quick walk through.
package ch08.apps;import ch08.maps.*; public class HMapDriver { public static void main(String[] args) { boolean result; HMap<String, String> test; test = new HMap<String, String>(10,0.75); /*String s = null;test.put(s,"value");test.put("s",null);System.out.println("Expect 'null':\t" + test.get("s"));System.out.println("Expect 'true':\t" + test.contains("s"));test = new ArrayListMap<String, String>();*/ System.out.println("Expect 'true':\t" + test.isEmpty()); System.out.println("Expect '0':\t" + test.size()); System.out.println("Expect 'null':\t" + test.put("1", "One")); System.out.println("Expect 'false':\t" + test.isEmpty()); System.out.println("Expect '1':\t" + test.size()); System.out.println("Expect 'One':\t" + test.put("1", "One")); System.out.println("Expect 'false':\t" + test.isEmpty()); System.out.println("Expect '1':\t" + test.size()); test.put("2", "Two"); test.put("3", "Three");…
package filterSort;import java.io.File;import java.io.FileNotFoundException;import java.util.Arrays;import java.util.Scanner;import java.util.*; public class FilterSort { /*** Allocates and returns an integer array twice the size of the one* supplied as a parameter. The first half of the new array will* be a copy of the supplied array and the second half of the new* array will be zeros.** @param arr the array to be copied* @return array twice the size of <tt>arr</tt> with its initial* elements copied from <tt>arr</tt>* @throws NullPointerException if <tt>arr</tt> is null.*/public static int[] doubleArrayAndCopy(int[] arr) {int len = arr.length;int max = arr.length * 2;int[] copyArr = Arrays.copyOf(arr,max);int length = copyArr.length-1;Arrays.sort(copyArr, 0, length);return copyArr; } public static void main(String[] args) {int[] data = new int[8];try {File file = new File("data.txt");Scanner myReader = new Scanner(file);for(int i = 0;…

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