EBK BIG JAVA: EARLY OBJECTS, INTERACTIV
EBK BIG JAVA: EARLY OBJECTS, INTERACTIV
6th Edition
ISBN: 8220102010314
Author: Horstmann
Publisher: YUZU
Question
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Chapter 16, Problem 17PP
Program Plan Intro

To implement a hash table that marks the removed element with an “inactive” element

Program plan:

  • In a file “HashSet.java”, import necessary package, and create a class “HashSet”,
    • Declare the array of “Object” type.
    • Declare the necessary variable.
    • Declare the static variable.
    • Define the constructor to create a hash table.
      • Create an array and set the current size to “0”.
    • Define the method “toString()” that returns the string representation of array.
    • Define the method “contains()”,
      • Assign the hash code.
      • Create a loop for probing sequence,
        • Check the condition,
          • If it is true, returns true.
        • Check whether it contains null value,
          • If it is true, returns false.
            • Create a loop for second probing sequence,
              • Check the condition,
                • If it is true, returns true.
              • Check whether it contains null value,
                • If it is true, returns false.
            • Returns false.
    • Define the method “getHashCode()”,
      • Assign the hash code.
      • Check whether the value is less than “0”,
        • If it is true, assign the negative value.
            • Update the hash value.
            • Return the hash code.
    • Define the method “add()”
      • Check whether there is a room before probing,
        • If it is true, call the method “resizeTable()()”.
            • Assign the hash code returned from the method “getHashCode()”.
            • Create a loop to follow probing sequence,
              • Check whether the bucket has either null value or INACTIVE element,
                • If it is true, assign the object properties.
                • Increment the size.
                • Returns true.
              • Otherwise, check another condition,
                • Returns false.
            • Execute a loop to wrap around to”0” to the value less than the hash code,
              • Check whether the bucket contains either null value or INACTIVE element,
                • If it is true, assign the object properties.
                • Increment the size.
              • Otherwise, Check the condition,
                • Returns false.
            • Returns true.
    • Define the method “remove()” to remove the object from the set,
      • Get the hash code.
      • Set the position to “-1”.
      • Create a loop,
        • Check the condition,
          • If it is true, assign the hash code to position.
            • Create a loop,
              • Check the condition,
                • If it is true, set the new position.
            • Check whether the position value is “-1”,
              • If it is true, returns false.
            • If the item found, replace it with INACTIVE element.
            • Decrement the size.
            • Returns true.
    • Define the method “iterator()” that returns an iterator that traverses the elements of the set.
    • Define the method “size()” to return the size.
    • Define the method “resizeTable()”,
      • Create an object.
      • Copy the bucket to the object array.
      • Assign the value to the bucket.
      • Set the current size to “0”.
      • Create a loop,
        • Check the condition,
          • If it is true, call the method “add()”.
    • Create a class “HashSetIterator”,
      • Declare the variable to denote bucket index.
      • Define the constructor that creates a hash set iterator that points to the first element of the hash set.
      • Define the method “hasNext ()”,
        • Create a loop,
          • Check the condition,
            • Returns true.
              • Returns false.
      • Define the method “next ()”,
        • Execute the statement without checking the condition,
          • Increment the index.
          • Check the condition,
            • If it is true, create an object for “NoSuchElementException”.
              • Check whether the current bucket value contains null,
                • Return the value.
      • Define the method “remove()”,
        • Throw an exception “UnsupportedOperationException”.
  • In a file “HashSetTest.java”, create a class “HashSetTest”,
    • Define the method “main()”,
      • Create an object for “HashSet”.
      • Add the name “Harry” into the set.
      • Add the name “Romeo” into the set.
      • Add the name “Susannah” into the set.
      • Add the name “Sarah” into the set.
      • Add the name “Adam” into the set.
      • Add the name “Larry” into the set.
      • Print the set.
      • Print the expected output.
      • Remove “Susannah” from the set.
      • Print the set and expected result.
      • Check whether “Adam” is in the set and print the result.
      • Print the expected result.

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The images I have uploaded are the part 1 to 4 and questions below are continue on the questions uploaded 5. C++ Class Template with Method Stubs #pragma once #include <iostream> #include <string> #include <stdexcept> #include <vector>   template <typename T> class HashTable { private:     struct Entry {         std::string key;         T value;         bool isOccupied;         bool isDeleted;         Entry() : key(""), value(), isOccupied(false), isDeleted(false) {}     };       Entry* table;     size_t capacity;     size_t size;     double loadFactorThreshold;           size_t customHash(const std::string& key) const {         size_t hash = 5381;         for (char c : key) {             hash = ((hash  <<  5) + hash)  +  c;         }         return hash;     }       size_t probe(const std::string& key, bool forInsert = false) const;     void resize();   public:     // Constructor     HashTable(size_t initialCapacity = 101);         // Big…
this project is NOT for graded(marks) purposes, please help me with the introduction. give me answers for the project. i will include an image explaining everything about the project.
Java Graphics (Bonus In this lab, we'll be practicing what we learned about GUIs, and Mouse events. You will need to implement the following: A GUI with a drawing panel. We can click in this panel, and you will capture those clicks as a Point (see java.awt.Point) in a PointCollection class (you need to build this). The points need to be represented by circles. Below the drawing panel, you will need 5 buttons: O о о ○ An input button to register your mouse to the drawing panel. A show button to paint the points in your collection on the drawing panel. A button to shift all the points to the left by 50 pixels. The x position of the points is not allowed to go below zero. Another button to shift all the points to the right 50 pixels. " The x position of the points cannot go further than the You can implement this GUI in any way you choose. I suggest using the BorderLayout for a panel containing the buttons, and a GridLayout to hold the drawing panel and button panels. Regardless of how…

Chapter 16 Solutions

EBK BIG JAVA: EARLY OBJECTS, INTERACTIV

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