The following createPassword methods takes first name and last name as its parameters and generates password. public static String createPassword(String first, String last) { String part1 first.substring(0,2); String part2 - last.substring(last.length()-3, last.Length()); int part3 first.length(); return part1 • part2 part3; What password will this method generate for the following first name and last name values? String firstName "Happy"; String lastName "Birthday"; String password = createPassword(firstName, lastName); password -

The following createPassword methods takes first name and last name as its parameters and generates password. public static String createPassword(String first, String last) { String part1 first.substring(0,2); String part2 - last.substring(last.length()-3, last.Length()); int part3 first.length(); return part1 • part2 part3; What password will this method generate for the following first name and last name values? String firstName "Happy"; String lastName "Birthday"; String password = createPassword(firstName, lastName); password -

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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You have created the following class called Course: public class Course { private String code; private long grade; } public String getCode() { return code; } public void setCode (String code) { this.code = code; } public long getGrade() { return grade; } public void setGrade (long grade) ( this.grade grade; } How would you use aggregation in a Student class to show that a student has one or more courses? public class Student { private ArrayList coursel } public class Student extends Course private ArrayList coursel public class Student extends Course public class Student { private Course courseList; }
Using an appropriate package and test class name, write the following tests for GamerProfile's constructor: testNameShouldNotBeNull testNameShouldNotBeEmpty testNameShouldNotBeBlank testShouldCreateValidGamerProfile Hint: use assertTrue or assertFalse for getters involving boolean values Hint: get the game list from the gamer and call the list's isEmpty along with an assertTrue or assertFalse, as appropriate.GamerProfile:public class GamerProfile { private String userName; private boolean pvpEnabled; private boolean online; private ArrayList<GameInfo> gameLibrary; public GamerProfile(String userName) { this.userName = userName; this.pvpEnabled = false; this.online = false; gameLibrary = new ArrayList<GameInfo>(); } // Getter for the getUserName variable public String getUserName() { return userName; } // Getter for the PvpEnabled…
Java Language How can I make a test in JUnit for this setter and getter? private String customerId; public String getCustomerId(){ return customerId; } public void setCustomerId(String customerId){ if (customerId.length()<= 4){ this.customerId = customerId; } }
> > ©Citizen ©Company model model • licenseNo: String e location: String expiryDate: Date Company(int, String,String,String,Date) • getLicenseNo() String • setLicenseNo(String).void • getLocation() String • setlocation(String) void • getExpiryDate().Date • setExpiryDate(Date).void • toString() String nationalNo: int - bDate: Date nationality: String FCitizen(int,String,int,Date,String) • getNationalNo() int • setNationalNo(it) void • getbDate():Date • setbDate(Date):void • getNationality() String • setNationality(String) void toString() String > ©Customer model -bookings • book • cance id: int name: String FCustomer(int,String) • removeBookedObject(int).void • getBookings() ArrayList • setBookings(ArrayList)void • getid()int • setid(int).void • getName():String • setName(String) void • getTotalPayment() double toString() String -booki -customers <
Redesign LaptopList class from previous project public class LaptopList { private class LaptopNode //inner class { public String brand; public double price; public LaptopNode next; public LaptopNode(String brand, double price) { // add your code } public String toString() { // add your code } } private LaptopNode head; // head of the linked list public LaptopList(String fname) throws IOException { File file = new File(fname); Scanner scan = new Scanner(file); head = null; while(scan.hasNextLine()) { // scan data // create LaptopNode // call addToHead and addToTail alternatively } } private void addToHead(LaptopNode node) { // add your code } private void addToTail(LaptopNode node) { // add your code } private…
import java.util.Scanner; public class Inventory { public static void main (String[] args) { Scanner scnr = new Scanner(System.in); InventoryNode headNode; InventoryNode currNode; InventoryNode lastNode; String item; int numberOfItems; int i; // Front of nodes list headNode = new InventoryNode(); lastNode = headNode; int input = scnr.nextInt(); for(i = 0; i < input; i++ ) { item = scnr.next(); numberOfItems = scnr.nextInt(); currNode = new InventoryNode(item, numberOfItems); currNode.insertAtFront(headNode, currNode); lastNode = currNode; } // Print linked list currNode = headNode.getNext(); while (currNode != null) { currNode.printNodeData(); currNode…
Certificate.java public class Certificate { private String holder; private int level; public void setHolderAndLevel(String newHolder, int newLevel) { holder = newHolder; level = newLevel; } public void print() { System.out.println("Certificate: " + holder + ", Level: " + level); } } -- SOLVE BELOW -- Certificates.java import java.util.Scanner; import java.util.ArrayList; public class Certificates { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); ArrayList<Certificate> certificateList = new ArrayList<Certificate>(); Certificate currCertificate; String currHolder; int currLevel; int certificateCount; int i; certificateCount = scnr.nextInt(); for (i = 0; i < certificateCount; ++i) { currHolder = scnr.next(); currLevel = scnr.nextInt(); currCertificate = new Certificate(); currCertificate.setHolderAndLevel(currHolder, currLevel); certificateList.add(currCertificate); } /* Your code goes here */ } }
preLabC.java 1 import java.util.Random; 2 import java.util.StringJoiner; 3 4- public class preLabC { 5 6- 7 8 9 10 11 12 13 14 15 16 17 18 19 20 } public static String myMethod(MathVector inputVector) { String vectorStringValue = new String(); // empty String object System.out.println("here is the contents object, inputVector: + inputVector); // get a String out of that MathVector object. Do it here. On the next line. // return the double value here. return vectorStringValue; "1 ▸ Compilation Description A MathVector object will be passed to your method. Return its contents as a String. If you look in the file MathVector.java you'll see there is a way to output the contents of a MathVector object as a String. This makes it useful for displaying to the user. /** * Returns a String representation of this vector. The String should be in the format "[1, 2, 3]" * * @return a String representation of this vector * @apiNote **DO NOT** use the built-in (@code Arrays.toString()} method. */…
In some circumstances, a class is reliant on itself. That is, one class's object interacts with another class's object. To accomplish this, a method of the class may accept an object of the same class as a parameter.The String class's concat function is an example of this situation. The method is called by one String object and receives another String object as an argument. Here's an illustration:str3 is equal to str1.concat(str2);The method's String object (str1) appends its characters to those of the String supplied as a parameter (str2). As a consequence, a new String object is returned and saved as str3. Create Java code to implement the conditions given.
I wrote my codes like this: public class OrderApp { public void main(String[] args) { FoodOrder foodOrder; } } public class Customer { private String name; public void chageCrditCard() { } } public class FoodOrder { Customer customer; private long orderNumber; public void addItem (MenuItem i) { } public double getTotalCost() { return 0.00; } } public class MenuItem { public String name; protected double price; public double getPrice() { return price; } } public class ComboMeal extends MenuItem { private double discount; public double getPrice() { return price; } public void addItem (MenuItem i) { } } I'm not sure If I did the relationship between classes and implement each one right. Also, how do I express multiplicities and specifiers in the codes? And finally, please review the whole thing. Subject: Java Programming
Question 4 Fix the following code. Use java. Full explain this question and text typing work only We should answer our question within 2 hours takes more time then we will reduce Rating Dont ignore this line
InheritanceDemo.java: // StudentName Today's Date public class InheritanceDemo { public static void main(String[] args) { KleenexBox kb1 = new KleenexBox(); KleenexBox kb2 = new KleenexBox(100); Box justABox = new Box(); System.out.println("justABox has area " + BoxArea(justABox)); System.out.println("kb1 has area " + BoxArea(kb1)); System.out.println("kb2 has this many square inches of tissue: " + KleenexArea(kb2)); } public static double BoxArea (Box b) { return b.width * b.length; } public static double KleenexArea (KleenexBox a) { return a.width * a.length * a.numTissues; } } Box.java: // Student Name Today's Date public class Box { public double width; public double length; public String label; } KleenexBox.java: // Student's Name Today's Date public class KleenexBox extends Box { public int numTissues; // A new Kleenex box public KleenexBox() { numTissues = 50; length = 8.0; width = 5.0; } // A new Kleenex box with a specific number of tissues public…