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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Student: Michael Reyes 2. Write a Java program that would resemble a payroll system. An input window that will accept the employee number and the number of days of rendered work. A 2d-ArrayList that contains the employee number and the rate per day is to be searched and used to compute the gross salary. Gross salary is computed by multiplying the number of days of rendered work by the rate per day of the particular employee. If the gross salary computed is greater than 100,000 the tax is 20% of the gross salary, otherwise, the tax is 10%. Deduct the tax from the gross salary to get the net pay. Display the employee number, gross salary, tax deduction, and net pay in an output window. Design your own input/output windows. (USE OOP CONCEPT JFRAME)
Write the following Java code: Create an array of size 10 with elements entered by the user. Print the Array Switch the first and last elements of the array. Shift all elements by one to the right, and move the last element into the first position. Replace all even numbers with 0.
TASK 1: Write a Java program that do the following: [10 Marks] 1. Define and create an ArrayList which is called "itemsList" of Integer objects. [1 mark] 2. Define and create an array which is called "numList" with five integer vales. [1 mark] 3. Copy the five values from the array "numList" o ArrayList using a for loop. [2 marks] 4. Display the contents of the ArrayList with a message using the for loop with the get method. marks] 5. Display the size of ArrayList with a message. [1.5 mark] 6. Find the sum of ArrayList. [3 marks] [1.5
Create the following program to demonstrate working with arrays in java. Your company pays its sales staff on a commission basis. Each employee receives $500 per week plus 6.5% of their sales. For example, a salesperson who sells $10,000 worth of products will get a salary of 500 + (10000 * .065) or $1150 for that week. You are given the task of creating a program to allow a manager to enter in the sales for 10 employees. (Store them in an array of course.) Then it should display the 10 sales amounts, the 10 salaries for this pay period, and the average salary. (Hint: There are a couple ways to approach this one, here are two ideas: (1) You could create a second array for the salaries and load it at the same time as you gather and store the sales, then loop through the salaries one to find the average, and then you have all the pieces to print. (2) Another solution would be to take in the sales, and then calculate the salaries on the print (which means you don't have to store them in a…
in java Integer numVals is read from input and integer array userCounts is declared with size numVals. Then, numVals integers are read from input and stored into userCounts. If the first element is less than the last element, then assign Boolean firstSmaller with true. Otherwise, assign firstSmaller with false. Ex: If the input is: 5 40 22 41 84 77 then the output is: First element is less than last element 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 import java.util.Scanner; public class UserTracker { publicstaticvoidmain(String[] args) { Scannerscnr=newScanner(System.in); intnumVals; int[] userCounts; inti; booleanfirstSmaller; numVals=scnr.nextInt(); userCounts=newint[numVals]; for (i=0; i<userCounts.length; ++i) { userCounts[i] =scnr.nextInt(); } /* Your code goes here */ if (firstSmaller) { System.out.println("First element is less than last element"); } else { System.out.println("First element is not less…
Write a java program with the following: Declare an array basic with 20 elements of type double. Initialize th Write a java program with the following: Declare an array basic with 20 elements of type double. Initialize the arrays with any numbers. Declare a second array squares of 20 elements so that it has the square values of the array basic. Declare a third array halves of 20 elements so that it has the half values of the array basic. Output the three arrays so that 10 elements per line are printed. Print the array name in a separate line before each array and an empty line after each array. e arrays with any numbers. Declare a second array squares of 20 elements so that it has the square values of the array basic. Declare a third array halves of 20 elements so that it has the half values of the array basic. Output the three arrays so that 10 elements per line are printed. Print the array name in a separate line before each array and an empty line after each array.
Java Program
-CLO3- Question No 1: (Array of primitive values) Initialize an array of double values of size 10, with user input. Then calculate and display the sum and average of these values. Question No 2: (Array of objects) Create a class Student having rollno and name as private instance variables. write a program that creates studentArray of five students; it then initializes all students rollno and name by using an input function that will initialize and return an array of five students. and display function that displays the values of all students the array which is passed to it.
4. Write and execute a program in Java that will read 3 test scores from the of keyboard and store them in an array integers of size 3 and then display the C:\PROGRA-1XINOXS-.. Enter test 25 Enter test 20 Enter test 30 Content of the array 25 20 30 Press any key to continue.. sCore: sCore: sCore:
In C# Use a one-dimensional array to solve the following problem. Write a class called ScoreFinder. This class receives a single dimensional integer array representing passer ratings for NFL players as an argument for its constructor. The test class will provides this argument. The test class then calls upon a method from the ScoreFinder class to start the process of finding a specific rating, which will be provided by the user. The method will iterate through the array and find any matching values. For all the matches that are found, the method will note the index of the cell along with its value. At completion, the method will print a list of all the indices and the associated scores along with a count of all the matching values.
Create a Java program that will perform the following statements.Perform the following items in a continuous manner. The code solution for the next item will be basedon the code performed on the previous item.1. Create an ArrayList named “apostles” and add the following names to it: Juan, Pedro, Lucas,Judas, Mateo, Marcos and Simon.2. Print the size of the ArrayList to the standard output before and after adding the names.3. Use two methods to print the names in standard output.a. Using For loopb. Using Iterator4. Add the name “Philip” at the end, and add the name “Thomas” between the two names “Juan”and “Pedro”.5. Remove the name “Judas” using its index position.6. Search the names “Marcos”, “James” and “Judas” in the ArrayList “apostles”This part will display the following:Does “apostles” contains Marcos? _______ (it will return a Boolean result)Does “apostles” contains James? _______Does “apostles” contains Judas? _______7. Sort the names of the ArrayList in alphabetical order.8.…
Part 2: Coding 1. Write a complete Java program named FindAverage that contains the following: a. A main method that asks the user to provide the number of rows and columns for a 2- dimensional array of integers. b. A main method calls the getArray() method that creates the 2D array of specified size and populates it with random values from 0 to 100. c. A main method prints the elements of the 2D array created by getArray(). d. A main method calls the printAverage method that will: i. Receive the two-dimensional array as input ii. Calculate the average of elements in this array iii. Display the average on the console. The average of all elements should be formatted as xxx.XX. Hint: you can print the 2D array at any point in the program using either traditional for loop, foreach loop or available methods in java.util package. e. Add comments to your program. Start your program with the following header: *** *** ***** /**** ***

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