Make a distinction between the Java classes GenericServlet and HttpServlet using an example.
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Make a distinction between the Java classes GenericServlet and HttpServlet using an example.
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- Please written by computer source Java - explain what this lone of code means void overrideProgramParameters (Map<String, String> clientParameters, ValueBean valueBean) ;bThere’s a somewhat imperfect analogy between a linked list and a railroad train, where individual cars represent links. Imagine how you would carry out various linked list operations, such as those implemented by the member functions insertFirst(), removeFirst(), and remove(int key) from the LinkList class in this hour. Also implement an insertAfter() function. You’ll need some sidings and switches. You can use a model train set if you have one. Otherwise, try drawing tracks on a piece of paper and using business cards for train cars.BuiltInFunctionDefinitionNode.java has an error so make sure to fix it. BuiltInFunctionDefinitionNode.java import java.util.HashMap; import java.util.function.Function; public class BuiltInFunctionDefinitionNode extends FunctionDefinitionNode { private Function<HashMap<String, InterpreterDataType>, String> execute; private boolean isVariadic; public BuiltInFunctionDefinitionNode(Function<HashMap<String, InterpreterDataType>, String> execute, boolean isVariadic) { this.execute = execute; this.isVariadic = isVariadic; } public String execute(HashMap<String, InterpreterDataType> parameters) { return this.execute.apply(parameters); } }
- Write a Java program that asks the user to enter items until the user chooses to stop, stores them into links (nodes), and chains the links together into a linked list. You will need to make the following changes: Your linked list should store information about Customers' Transactions that contain three fields: customer name (string), customer number (int), and transaction description (string). Instead of putting all of your code inside the main source code file, you should create the following functions: o addToStart(Item x) o addToEnd(Itemn x) o insertAt(Item x, int n) o remove(int customer number) o reverse() o printList() • Instead of simply asking the user if they want to add a new link, your main program should offer the user a menu of options: o Add a new link to the end o Add a new link to the beginning o Insert an element at index n into the list. 0 Remove a link from the list o Reverse the list o print out the entire list o Quit the programJava Code: Below is Parser.java and there are errors. getType() and getStart() is undefined for the type Optional<Token> and there is an error in addNode(). Make sure to get rid of all the errors in the code. Attached is images of the errors. Parser.java import java.text.ParseException;import java.util.LinkedList;import java.util.List;import java.util.Optional; import javax.swing.ActionMap; public class Parser { private TokenHandler tokenHandler; private LinkedList<Token> tokens; public Parser(LinkedList<Token> tokens) { this.tokenHandler = new TokenHandler(tokens); this.tokens = tokens; } public boolean AcceptSeparators() { boolean foundSeparator = false; while (tokenHandler.MoreTokens()) { Optional<Token> currentToken = tokenHandler.getCurrentToken(); if (currentToken.getType() == Token.TokenType.NEWLINE || currentToken.getType() == Token.TokenType.SEMICOLON) {…What is generic class give me a one example
- In JAVA, use a HashMap to count and store the frequency counts for all the words from a large text document. Then, display the contents of this HashMap with given words and their frequency in the document. Next, please create a set view of the Map and store the contents in an array. Sort this array based on key value and display it. Finally, sort the array in decreasing order by frequency and display it.2. Linked ListsGiven the starter code consisting of ListOfNodes.java and Node.java, complete theimplementation of all the methods in ListOfNodes.java without changing the code in Node.javaor main(). You should start by commenting all the lines in main and gradually implement themethods then run the code after each method comparing the real output to the expected out listedhere. The following are some rules and guidelines you must follow:a. Read all the methods and decide if some of them will call on othersb. Reuse methods whenever possiblec. You are encouraged to write private helper methodsd. You cannot use the LinkedList class provided by the Java Framework The expected output is:[], 0[l], 1[el], 2[Hel], 3[Helo], 4[Hello], 5[ABCDE], 5ABCDE[ABCDE], 5CMPS 210 Quiz 1 Spring 2020/2021[ABCCDE], 6[ACXCDC], 6[AXCDC], 51C[AXCD], 4D[AXC], 3C[AX], 2X[A], 1A[], 0[abcde], 5[badce], 5[$badce], 6[b$daec], 6Describe some data that might be best stored in a Java Collection LinkedList. Briefly explain why this is probably a good choice. Give an example of the LinkedList declaration and instantiation for your example. Show the code to store at least one value into your LinkedList.
- This is needed in Java Given an existing ArrayList named friendList, find the first index of a friend named Sasha and store it in a new variable named index.In JAVA, use a HashMap to count and store the frequency counts for all the words from a large text document. Using file util, please. Then, display the contents of this HashMap with words and frequency count. Next, please create a set view of the Map and store the contents in an array. Sort this array based on key value and display it. Finally, sort the array in decreasing order by frequency and display it as well. Please label your explanation in the code Thank you