This is java recursive code --> I only need this method. please help Write a RECURSIVE method “int sumPos(Node head)” to calculate the sum of positive integers in a linked list of integers referenced by head.  No global variables are allowed.   Node is declared as: Node {       int value;       Node next; }

In Java please help with the following:   Sees whether this list is empty.@return True if the list is empty, or false if not. */ public boolean isEmpty(); } // end ListInterface Hint:Node class definition should look something like: public class Node<T> { T element; Node next; Node prev; public Node(T element, Node next, Node prev) { this.element = element;this.next = next;this.prev = prev; } }

Java -  This project will allow you to compare & contrast different 4 sorting techniques, the last of which will be up to you to select.  You will implement the following:   Bubble Sort (pair-wise) Bubble Sort (list-wise) [This is the selection sort] Merge Sort Your choice (candidates are the heap, quick, shell, cocktail, bucket, or radix sorts) [These will require independent research)   General rules: Structures can be static or dynamic You are not allowed to use built in methods that are direct or indirect requirements for this project – You cannot use ANY built in sorting functions - I/O (System.in/out *) are ok. All compare/swap/move methods must be your own. (You can use string compares) Your program will be sorting names – you need at least 100 unique names (you can use the 50 given in project #3) – read them into the program in a random fashion (i.e. not in any kind of alpha order). *The more names you have, the easier it is to see trends in speed. All sorts will be from…

Given the interface of the Linked-List struct Node{     int data;     Node* next = nullptr; }; class LinkedList{ private:     Node* head;     Node* tail; public:     display_at(int pos) const;     ... };   Write a definition for a method display_at. The method takes as a parameter integer that indicates the node's position which data you need to display.  Example: list: 5 -> 8 -> 3 -> 10 display_at(1); // will display 5 display_at(4); // will display 10   void LinkedList::display_at(int pos) const{      // your code will go here  }

PYTHON LAB: Inserting an integer in descending order (doubly-linked list) Given main.py and an IntNode class, complete the IntList class (a linked list of IntNodes) by writing the insert_in_descending_order() method to insert new IntNodes into the IntList in descending order. Ex. If the input is: 3 4 2 5 1 6 7 9 8 the output is: 9 8 7 6 5 4 3 2 1   _____________________________________________________________________________________   Main.py: from IntNode import IntNode from IntList import IntList   if __name__ == "__main__":     int_list = IntList()         input_line = input()     input_strings = input_line.split(' ')         for num_string in input_strings:         # Convert from string to integer         num = int(num_string)           # Insert into linked list in descending order         new_node = IntNode(num)         int_list.insert_in_descending_order(new_node)             int_list.print_int_list() IntNode.py class IntNode:     def __init__(self, initial_data, next = None,…

Please help me with the below using java. Please also comment the code (explai. What each li e is doing). Please make sure both codes are completed using recursion

Can you help me with a C++ programming task I am trying to complete for myself please: Write a program (in main.cpp) that: Prompts the user for a filename containing node data. Outputs the minimal spanning tree for a given graph. You will need to implement the createSpanningGraph method in minimalSpanTreeType.h to create the graph and the weight matrix. There are a few tabs: main.cpp, graphType.h, linkedList.h, linkedQueue.h, queueADT.h, minimalSpanTreeType.h, and then two data files labeled: CH20_Ex21Data.txt, CH20Ex4Data.txt

OCaml Code: The goal of this project is to understand and build an interpreter for a small, OCaml-like, stackbased bytecode language. Make sure that the code compiles correctly without any errors and provide the code with the screenshots of the outputs. The code must have a function that takes a pair of strings (tuple) and returns a unit. Make sure to have the following methods below:   -Push integers, strings, and names on the stack -Push booleans -Pushing an error literal or unit literal will push :error: or :unit: onto the stack, respectively -Command pop removes the top value from the stack -The command add refers to integer addition. Since this is a binary operator, it consumes the top two values in the stack, calculates the sum and pushes the result back to the stack - Command sub refers to integer subtraction where if top two elements in the stack are integer numbers, pop the top element(y) and the next element(x), subtract y from x, and push the result x-y back onto the stack…

IN JAVA PLEASE, need help finding an element in the list     /**     * Returns whether the given value exists in the list.     * @param value - value to be searched.     * @return true if specified value is present in the list, false otherwise.     */     public int indexOf(int value) {        //Implement this method                return -1;    }

Assume we have an IntBST class, which implements a binary search tree of integers. The field of the class is a Node variable called root that refers to the root element of the tree. 1) Write a recursive method for this class that computes and returns the sum of all integers less than the root element. Assume the tree is not empty and there is at least one element less than the root. 2) Write a recursive method that prints all of the leaves, and only the leaves, of a binary search tree. 3) Write a method, using recursion or a loop, that returns the smallest element in the tree.