2. Produce a class in java which creates two dimensional arrays A, B and C. Array A contains 9 elements,array B contains 4 elements and array C contains 4 elements.Write and execute a java program to perform following operations by creating object of the aboveclass, and using it to do the following operations:Input: Take input (nonzero numbers) from user and store elements in the array A(3 X 3) andarray B(2 X 2)Display: Display elements in the array A and Array BFind_common: Create and display array C (2 X 2) that contains those elements that are commonto array A and array B, otherwise display 0Note: Above operations are to be implemented as methods of class for array1 2 34 5 67 8518523999A(Input)B (Input)C (Output)

Java Code: import java.util.*; class Main { public static void main(String[] args) { Scanner sc=new…

Answered: 2. Produce a class in java which…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Write a java program to create a class Employee which contains member variables as name (String object)empid (Integer object)salary (Float object)age (Integer object)Define a default as well as a parameterized constructor to initialize member variables with default and specified values respectively. Define and overload a method search as defined below boolean search (Employee e[ ], String name) To search an employee with name in an array of employee objects, if found return true, else false.boolean search (Employee e[ ], Integer empid) To search an employee with the empid in an array of employee objects, if found return true, else false.Also define another method to get the name of employee having highest salary in a set of employees. String getHighestSalary(Employee e[ ]) To return the name of the employee with highest salary in an array of employee objects.Input: At least 3 employee details like name, empid, salary and age.Name of employee to searchId of employee to searchOutput:…
write easy java program. Implement a class Quiz that implements the Measurable interface. A quiz has a scoreand a letter grade (such as B+). Use the Data class of Exercise P8.1 to processan array of quizzes. Display the average score and the quiz with the highestscore (both letter grade and score).
Java program * Interfaces 1. Modify the class Rectangle to implement the Comparable interface, as shown in the following UML class diagrams. Apply the required changes in the class’s header.2. Then, in the Rectangle class override the method compareTo(), so if this object’s area is greater than the specified (given through the parameter) object’s area return 1, if it is less than return -1, and 0 otherwise. 3. Create a test class named Test2. Then complete the following tasks: a. Create an ArrayList and add to it 4 Rectangle objects with different width and height values. b. Print out the elements of the ArrayList. c. Sort the elements of the ArrayList using the static method sort of the class java.long.Collections. This would be possible only, if you implemented the method compareTo() correctly in the Rectangle class. d. After sorting the elements of the ArrayList, print the elements again. 4. Run the Test class. Here is the rectangle's class program public class Rectangle extends…
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Write a C++ program that will display multiple-choice trivia questions, accept the user's answers, and provide a full key and a score at the end. Design and implement a class called Question. The Question class contains the following information: a stem (the text of the trivia question) an array of 4 multiple choice answers (the text of each possible answer) the letter of the correct answer (A, B, C, or D), called the key. This class will be used to represent trivia questions in a trivia game. The following operations should be available for Question objects (use the provided names). Construct a Question with no values (use empty strings for stem and answers and 'X' for the key). Construct a Question given its 3 components (). setStem: Set the stem question. getStem: Return the stem question. setAnswers: Set the 4 answers given an array. The answers will NOT include the letter (A, B, C, or D). getAnswer(i): Return the single answer at index i. setKey: Set the key letter. getKey:…
a)Implement all the classes. The formula for calculating salary for each class is shown below: For the Employee class, salary = basic salary + allowance For the Manager class , salary = basic salary + allowance + travel claims For the Clerk class , salary = basic salary + allowance + overtime pay,where overtime pay = overtime hours x overtime rate. Set overtime rate as RM3.50. Use java to write a client program that creates an array named empArray that stores an object of an Employee,a Manager and a Clerk.In your program, include a method called printElements() that takes an array as parameter and prints the type of employee, the object’s data field values (by invoking thetoString() method) and the monthly salary.
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Write the complete Java code and explain the code Remove all errors from this code import java.util.*; import java.io.*; class Main { public static void main(String args[]) { // taking input using class Scanner Scanner sc = new Scanner(System.in); // taking total count of testcases int t = sc.nextInt(); while (t-- > 0) { // taking size of subArrays int k = sc.nextInt(); // Declaring and Intializing an array of size n int arr[] = new int[n]; // adding all the elements to the array for (int i = 0; i < n; i++) { arr[i] = sc.nextInt(); } // Calling the method max_of_subarrays of class solve // and storing the result in an ArrayList ArrayList<Integer> res = new Solution().max_of_subarrays(arr, n, k); // printing the elements of the ArrayList for (int i = 0; i…

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