Wrapper class objects such as an Integer are Mutable O True O False
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Question 7, is it true or false?
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- Each of the numeric wrapper classes has a static toString method. What do these methods do?Define a Student class, with 3 data fields: ID: string Name: string FavoriteThing: string Create an application that stores and outputs a list of the students' favorite things. Suppose each student only has one favorite thing.Write an application TestStudent that prompts for and reads a student name. It then creates a Student object. It then prompts for and reads the number of quizzes n that the student has taken. It then prompts for and reads the scores of the student in n quizzes and adds each to the totalScore of the student using addQuiz() method. Finally, the application prints the student object using the toString() method, and it also prints his quiz average. The main method must handle java.util.InputMismatchException, java.lang.IllegalArgumentException and java.lang.Unsupported OperationException.
- In some cases, a class depends on itself. That is, an object of one class interactswith another object of the same class. To accomplish this, a method of the classmay accept as a parameter an object of the same class.The concat method of the String class is an example of this situation. Themethod is executed through one String object and is passed another String object as a parameter. Here is an example:str3 = str1.concat(str2);The String object executing the method (str1) appends its characters to thoseof the String passed as a parameter (str2). A new String object is returned asa result and stored as str3. Write java code to implement given conditionsclass ADSockDrawer(object): def__init__(self): self.drawer = AD() defadd_sock(self, color): """Adds a sock of the given color to the drawer. Do it in one line of code.""" # YOUR CODE HERE defget_pair(self, color): """Returns False if there is no pair of the given color, and True if there is. In the latter case, it removes the pair from the drawer. Do it in 5 lines of code or less.""" # YOUR CODE HERE @property defavailable_colors(self): """Lists the colors for which we have at least two socks available. Do it in 1 line of code.""" # YOUR CODE HEREAssign objectData with a JSON object with properties: userName (a string), studentAge (a number) and siblings (an array of strings). Note: The content of the properties doesn't matter.var objectData;/* Your solution goes here */
- CODE IN JAVA Please look at the attached image for the information about the format the code should be in The code should be in two different .java files one with getFirstName, getLastName and getZipCode; the other file would be containing the main method Design and implement an application that reads a sequence of up to 25 pairs of names and postal (zip) codes for individuals. Store the data in an object of a class called “NameAndZip”, designed to store a first name (String), last name (String), and a postal code (int). Create a driver class called “NameAndZipList”. Assume that each line of input will contain two strings followed by an integer value. You will then create an object for each line read in and store that object in an array of NameAndZip objects. After the Names and Codes have been entered, print the list in an appropriate format to the screen using the toString method in the NameAndZip class. To test the program enter 3 names and codes.Use Iterator design pattern to Write a java Gui application that can iterate through saved files.gui ava - explain what this lone of code means void overrideProgramParameters (Map<String, String> clientParameters, ValueBean valueBean) ;
- Create Playlist.java, Song.java, and PlayMusic.java. Song.java: models a song object; must have these members (you can add more members if needed): String name; String artist String album int time static int numSongs; Song(String name, String artist, String album, int time){} getName(){} getArtist(){} getAlbum(){} getTime(){} Playlist.java: models a playlist using an array of Song objects; must hvae the following members (you can add more members if needed): String name; String creator; Song[] songs; final int CAPACITY=20; //max size of a playlist Playlist(String name, String creator){} getName(){} addSong(Song song){} removeSong(Song song){} getSongs(){} Private data fields: Public methods: PlayMusic.java: This class will be the main class used to create and use Playlist and Song. This class should: Ask user for A name for their playlist Ask user for Creator name Ask user for The number of songs they will add to the playlist (must be < CAPACITY) Ask user for all…in java You are required to develop a small chatting application where two or more friends can communicate each other through messages. Create a class Message which has Date date, and message (string). Provide getters/setters, constructors, toString. Create a class Friend having String name, String contact, email provide getters/setters, constructors, toString. Provide following options to the user. Add Friend (which add new friend to the Friends file) View Friends (read data from Friends file and display) Send message (This should ask for friend name and message match the friend name and write that message to the inbox file). Read messages (This show all messages form inbox on JList or Text area.Create a class called "Session12Lab". Create a method public static String[] mergeArrays(String[] arr1, String[] arr2) where arr1 and arr2 are two String[]. The method should return one String[] array which is the concatenation of arr1 and arr2. Test this out in the class' main() method.