The fastest data-processing construction we've seen in the class is Choose one: Almost Universal hash block cipher stream cipher cryptogrpahic hash
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The fastest data-processing construction we've seen in the class is
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Almost Universal hash
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stream cipher
cryptogrpahic hash
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- Computer Science : Using Java implement the following lab experiment using HashMap. Create a class Product with following details Instance Variable: pid(int), product_name(String), price (double) Overloaded Constructor toString() method Create another class called TestProductMap and implement the following in the main method: Create 10 products Create HashMap that accepts key integer and value product. Ex: HashMap<int, Product> Add all the product to the HashMap, every product key is 1, 2, 3 … so on Display the HashMap Add duplicate product to the map with different key Get the duplicate product that you just added to the list and display it. Delete a product from the HashMap. Display the HashMapimport java.util.HashSet; import java.util.Set; // Define a class named LinearSearchSet public class LinearSearchSet { // Define a method named linearSearch that takes in a Set and an integer target // as parameters public static boolean linearSearch(Set<Integer> set, int target) { // Iterate over all elements in the Set for () { // Check if the current value is equal to the target if () { // If so, return true } } // If the target was not found, return false } // Define the main method public static void main(String[] args) { // Create a HashSet of integers and populate integer values Set<Integer> numbers = new HashSet<>(); // Define the target to search for numbers.add(3); numbers.add(6); numbers.add(2); numbers.add(9); numbers.add(11); // Call the linearSearch method with the set…Java Code: Create a Parser class. Much like the Lexer, it has a constructor that accepts a LinkedList of Token and creates a TokenManager that is a private member. The next thing that we will build is a helper method – boolean AcceptSeperators(). One thing that is always tricky in parsing languages is that people can put empty lines anywhere they want in their code. Since the parser expects specific tokens in specific places, it happens frequently that we want to say, “there HAS to be a “;” or a new line, but there can be more than one”. That’s what this function does – it accepts any number of separators (newline or semi-colon) and returns true if it finds at least one. Create a Parse method that returns a ProgramNode. While there are more tokens in the TokenManager, it should loop calling two other methods – ParseFunction() and ParseAction(). If neither one is true, it should throw an exception. bool ParseFunction(ProgramNode) bool ParseAction(ProgramNode) -Creates ProgramNode,…
- Java Programming: There are lots of errors in this code. Please help me fix them. Attached is images of what the code must have and circled the errors in the code. Interpreter.java public class Interpreter { private HashMap<String, Object> variables; public void interpretFunction(FunctionNode fn) { // Create a hash map for local variables variables = new HashMap<String, Object>(); for(Node constantNode : fn.getConstants()) { Object constant = constantNode.getValue(); variables.put(constantNode.getName(), constant); } for(Node localVarNode : fn.getVariables()) { Object localVar = null; variables.put(localVarNode.getName(), localVar); } interpretBlock(fn.getStatements(), variables); } public void interpretBlock(List<StatementNode> statementNodes, HashMap<String, Object> variables) { for(StatementNode statement : statementNodes) {…Exercise 2. Create a Book class where: Each book contains the following information: book title book Author name, barcode (as fong integers), and book topic. o Implement an appropriate constructor(s) and all necessary get/set methods. Test Book class: o Create diffcrent book objects (at least 5 hooks) and store them in a LinkedList sorted by book barcode value Generate a unique random integer value for the barcode. Iterate through the LinkedList and print out the books' details O Create a second LinkedList object containing a copy of the above LinkedList, but in reverse order.Java Code: Look through the Language Description and build a list of keywords. Add a HashMap to your Lexer class and initialize all the keywords. Change your lexer so that it checks each string before making the WORD token and creates a token of the appropriate type if the work is a key word. When the exact type of a token is known (like “WHILE”), you should NOT fill in the value string, the type is enough. For tokens with no exact type (like “hello”), we still need to fill in the token’s string. Finally, rename “WORD” to “IDENTIFIER”. Similarly, look through the Language Description for the list of punctuation. A hash map is not necessary or helpful for these – they need to be added to your state machine. Be particularly careful about the multi-character operators like := or >=. These require a little more complexity in your state machine. Strings and characters will require some additions to your state machine. Create “STRINGLITERAL” and “CHARACTERLITERAL” token types. These…
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- We have a parking office class for an object-oriented parking management system using java Implement the following methods for our class Add equals and hashCode methods to any class used in a List. Add a method to the Parking Office to return a collection of customer ids (getCustomerIds) Add a method to the Parking Office to return a collection of permit ids (getPermitIds) Add a method to the Parking Office to return the collection of permit ids for a specific customer (getPermitIds(Customer)) The above methods are not included in the parking office class of our class diagram. I have attached class diagrams with definitions of related classes in our system (i.e car, customer, .....)Description: In this project, you are required to make a java code to build a blockchain including multiple blocks. In each block, it contains a list of transactions, previous hash - the digital signature of the previous block, and the hash of the current block which is based on the list of transactions and the previous hash. If anyone would change anything with the previous block, the digital signature of the current block will change. When this changes, the digital signature of the next block will change. Detailed Requirements: 1. Define your block class which contains three private members and four public methods. a. Members: previousHash (int), transactions (String[]), and blockHash (int); b. Methods: i. Block( int previousHash, String[] transactions){} ii. getPreviousHash(){} iii. getTransaction(){} iv. getBlockHash(){} 2. Using ArrayList to design your Blockchain. 3. Your blockchain must contain genesis block and make it to be the first block. 4. You can add a block to the end of…Computer Science JAVA: Fill in the ParsedRequest method in the CustomParser.java file. The point of it is to parse the data that is found in the BasicRequestTest.java file. CustomParser.java: package request; public class CustomParser { public static ParsedRequest parse(String request){ //fill in here } } ParsedRequest.java: package request; import java.util.HashMap; import java.util.Map; public class ParsedRequest { private String path; private Map<String,String> queryMap = new HashMap<>(); private String method; private String body; public String getQueryParam(String key){ return queryMap.get(key); } public void setQueryParam(String key, String value){ this.queryMap.put(key, value); } public void setPath(String path) { this.path = path; } public void setMethod(String method) { this.method = method; } public String getPath(){ return path; } public String getMethod(){ return method;…