Implement a program where two threads print even and odd numbers alternatively.
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- Please implement in Java implement a keyed bag in which the items to be stored are strings (perhaps people’s names) and the keys are numbers (perhaps Social Security or other identification numbers). So, the in- sertion method has this specification: public void insert(String entry, int key);// Precondition: size( ) < CAPACITY, and the // bag does not yet contain any item// with the given key.// Postcondition: A new copy of entry has// been added to the bag, with the given key. When the programmer wants to remove or retrieve an item from a keyed bag, the key of the item must be specified rather than the item itself. The keyed bag should also have a boolean method that can be used to determine whether the bag has an item with a specified key. In a keyed bag, the pro- grammer using the class specifies a particular key when an item is inserted. Here’s an implementation idea: A keyed bag can have two private arrays, one that holds the string data and one that holds the corresponding…Implement in java Build a linked list of integers and write a function that takes the reference to the head of the linked list and sorts the given linked list using bubble sort algorithm. Test Case #1 Input 5 35241 Output 35241 12345 Explanation: • First line contains input order. Second line contains sorted order Sample testcases Input 1 3 35242 Output 1 75241 17145Write a Perl program that uses a hash and a large number of operationson the hash. For example, the hash could store people’s names and theirages. A random-number generator could be used to create threecharacter names and ages, which could be added to the hash. When aduplicate name was generated, it would cause an access to the hash butnot add a new element. Rewrite the same program without using hashes.Compare the execution efficiency of the two. Compare the ease ofprogramming and readability of the two.
- Design and implement an application that reads a sentence fromthe user and prints the sentence with the characters of each wordbackwards. Use a stack to reverse the characters of each word.PP 12.3 Modify the solution to the postfix expression evaluation problemso that it checks for the validity of the expression that is enteredby the user. Issue an appropriate error message when an erroneous situation is encountered.Please do this in JAVA PROGRAMMING. Given: List L of pairs of charactersString SOutput: TRUE if S is a valid string, FALSE otherwise. A string is considered valid if each character in the string can be paired with another character in the string, where the pair belongs to the input list L. Furthermore, two pairs cannot cross each other. In other words, a pair most completely enclose another, or be completely separate. Design and implement an efficient dynamic programming solution to this problem. Examples: Input L: (a b) (b c) (c d) (a a) Input S: aaba Output: True (pairs shown color-coded: aaba, "aa" fully encloses "ab") Input L: (a b) (b c) (c d) (a a) Input S: abcaad Output: True (pairs shown color-coded: abcaad, "ab" is separate from the other pairs) Input L: (a b) (b c) (c d) (a a) Input S: acbd Output: False (acbd is not valid because the pairs cross each other.) Input L: (a b) (b c) (c d) (a a) Input S: aaac Output: FalseImplement an postfix-to-infix translator using stacks. The applicationshould repeatedly read a postfix expression and print the equivalentinfix expression until the user quits. Throw an exception if the postfixexpression entered is invalid.
- Implement a spanning tree algorithm using C++. A spanning tree is an acyclic spanning subgraph of the of a connected undirected weighted graph. The program is interactive. Graph edges with respective weights (i.e., v1 v2 w) are entered at the command line and results are displayed on the console. 1. Each input transaction represents an undirected edge of a connected weighted graph. The edge consists of two unequal non-negative integers in the range 0 to 9 representing graph vertices that the edge connects. Each edge has an assigned weight. The edge weight is a positive integer in the range 1 to 99. The three integers on each input transaction are separated by space. An input transaction containing the string "end-of-file" signals the end of the graph edge input. After the edge information is read, the process begins. Use an adjacency matrix for recording input edges and show all code used to determine the spanning tree. The input data can be assumed to be valid, so is no need to…Assuming an implementation of a class of undirected graphs, implement a method that detects whether an undirected graph is acyclic. You can look for cycles during either a breadth-first traversal or a depth-first traversal by discovering an edge to a vertex that is not the predecessor and has already been visited. To simplify the problem initially, you can assume that the graph is connected. Then remove this assumption.' Java programYour task for this assignment is to identify a spanning tree in a connected undirected weighted graph using C++. 1. 2. 3. 4. Implement a spanning tree algorithm using C++. A spanning tree is an acyclic spanning subgraph of the of a connected undirected weighted graph. Your program will be interactive. Graph edges with respective weights (i.e., v1 v2 w) are entered at the command line and results are displayed on the console. Each input transaction represents an undirected edge of a connected weighted graph. The edge consists of two unequal uppercase letters representing graph vertices that the edge connects. Each edge has an assigned weight. The edge weight is a positive integer in the range 1 to 99. The three values on each input transaction are separated by a single space. An input transaction containing the string “end-of-file" signals the end of the graph edge input. After the edge information is read, the spanning tree evaluation process begins. Use an adjacency matrix for…
- 1 Implement a nested class DoubleNode for building doubly-linked lists, where each node contains a reference to the item preceding it and the item following it in the list (null if there is no such item). Then implement static methods for the following tasks: insert at the beginning, insert at the end, remove from the beginning, remove from the end, insert before a given node, insert after a given node, and remove a given node.Implement an abstract data type STAQUE, which is a combination of a linkedstack and a linked queue. Develop procedures to perform an insert and deleteoperation, termed PUSHINS and POPDEL, respectively, on a non-empty STAQUE.PUSHINS inserts an element at the top or rear of the STAQUE based on an indicationgiven to the procedure, and POPDEL deletes elements from the top/front of the listYour task is to develop a circular linked-list based simulation of the Josephus problem. Thesimulation will be text based. The user should be presented with a text-based menu asking him toenter the total number of people (n), starting point (i), direction (clockwise/anti-clockwise) andnumber to be skipped (k). Your program then must populate a circular linked list with n nodeswhere data of each node should be their position in the circle (starting from 1).Your program should then work iteratively printing the remaining persons after each iteration(round of killing). After the last iteration only the node with the winning initial position should beleft in the list.