#5. Please give a program to implement hashcode and equals..
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#5.
Please give a program to implement hashcode and equals..
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- ,Write a program to implement hashcode and equals.//From what I can tell, the answer provided does not answer my question. Asking again. Please read. Write a Java program that implements both Linear Search and Binary Search. The program willtake a collection of objects (generic type data) as input and print the number of comparisons neededto find a target element within that collection.You will create the following two Java classes:1. SearchCombo.java : Code for both linearSearch and binarySearch will be in this class. Youmay take help from the textbook Chapter 9, Section 9.1. However, note that the design require-ments are different from the textbook code.•Both search methods must use the Comparable<T> interface and the compareTo() method.•Your program must be able to handle different data types, i.e., use generics.•For binarySearch, if you decide to use a midpoint computation formula that is different fromthe textbook, explain that formula briefly as a comment within your code. 2. Tester.java : This class will contain…JAVA Create a new class HashSetManipulation with a main method. Create a new HashSet set and populate it with initial values "A", "B", and "C" using the add method. Print the size of the set using set.size(). Use a for loop to print the values in the set. Use the add method to add a new value "D" to the set and print the result of the set to show that the value has been added. Use the remove method to remove value "A" from the set and print the result of the set to show that the value has been removed. Use the contains method to check if the value "C" exists in the set and print the result.
- a. Given an array containing Strings, you need to write a code to store them in a hashtable.Assume that the Strings contain a combination of capital letters and numbers, and the String array will contain no more than 11 values.Use the hash function to be the|(summation of the alphabets of the String-product of the digits)|%11, where A=10, B=11, C=12, D=13, E=14…….up to Z=35.In case of a collision, use linear probing. For a String “C11SG2”, it’s hash function will produce the value=(value of C + value of S + value of G-1*1*2 ) - (12+28+16-2)%11=10, hence it will be stored in index 10 of the hash table. Plesse ans it asap, badly needed...!Write a Java program that uses ArrayList and Iterator. It should input from user the names and ages of your few friends in a loop and add into ArrayList. Finally, it should use an Iterator to display the data in a proper format. ( Sample run of the program:-) List of my Friends Enter name and age [friend# 0] Khalid Al-shamri 22.5 Do you want to add another friend (y/n)? y Enter name and age [friend# 1] Rahsed Al-anazi 21.1 Do you want to add another friend (y/n)? y Enter name and age [friend# 2] Salem Al-mutairi 23.7 Do you want to add another friend (y/n)? n Here is the data you entered: 0. Khalid Al-shamri, 22.5 1. Rahsed Al-anazi, 21.1 2. Salem Al-mutairi, 23.7If New character set is given, it is "qwertyuiopasdfghjklzxcvbnm."The first character is q, and we will place the letter "a" (for position) at index q during hashing, i.e. (17th).Our new character set after hashing is "kxvmcnophqrszyijadlegwbuft."write a java program to achieve the same for any given string.
- Provide a different implementation of ChoiceQuestion. Instead of storing the choices in an array list, the addChoice method should add the choice to the question text. For this purpose, an addLine method has been added to the Question class. Use the following files: Question.java /** A question with a text and an answer.*/public class Question{ private String text; private String answer; /** Constructs a question with empty text and empty answer. */ public Question() { text = ""; answer = ""; } /** Sets the answer for this question. @param correctResponse the answer */ public void setAnswer(String correctResponse) { answer = correctResponse; } /** Checks a given response for correctness. @param response the response to check @return true if the response was correct, false otherwise */ public boolean checkAnswer(String response) { return response.equals(answer); } /** Add a line of text to…Implement a resize function for a hash table. Resizing is the process of increasing a hash table's size when too many items have been added, reducing the hash table's effectiveness. To resize the hash table, increase the size of the table by some small factor (not less than 2x), remove everything from the old table, and insert it into the new larger table. Make sure to free up memory that is no longer used after resizing. Use the following heuristics to resize the table: • When the load factor exceeds .5. If no entry is found within the probe distance. Note, you may need to change insert as well to have a fully working solution.Complete ArrayStack.java, an array-based implementation o the Stack.java interface. Modify only the bodies of the following methods in the ArrayStack class: push pop top isEmpty isFull Nothing else should be modified in ArrayStack. Write the class ArrayStackTest to test your implementation. Print only the names of the tests and error messages. Give the test method meaningful names (e.g., emptyStackTest). Test push, pop, top, and isEmpty immediately after the stack has been instantiated. Push an element on an empty stack. Test pop, top, and isEmpty. Instantiate a stack with initialCapacity of 1. Push two elements. Check capacity. Other tests you deem necessary.
- In this assignment, you will compare the performance of ArrayList and LinkedList. More specifically, your program should measure the time to “get” and “insert” an element in an ArrayList and a LinkedList.You program should 1. Initializei. create an ArrayList of Integers and populate it with 100,000 random numbersii. create a LinkedList of Integers and populate it with 100,000 random numbers2. Measure and print the total time it takes to i. get 100,000 numbers at random positions from the ArrayList 3. Measure and print the total time it takes to i. get 100,000 numbers at random positions from the LinkedList 4. Measure and print the total time it takes to i. insert 100,000 numbers in the beginning of the ArrayList 5. Measure and print the total time it takes to i. insert 100,000 numbers in the beginning of the LinkedList 6. You must print the time in milliseconds (1 millisecond is 1/1000000 second).A sample run will be like this:Time for get in ArrayList(ms): 1Time for get in…2. Using the Hashtable class, write a spelling checker program that readsthrough a text file and checks for spelling errors. You will, of course, haveto limit your dictionary to several common words.3. Create a new Hash class that uses an arraylist instead of an array for thehash table. Test your implementation by rewriting (yet again) the computerterms glossary application.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