7. Consider an array that stores the following sequence of integers: 10, 15, 20, 25, 30 Write a Java method that returns the sum of the întegers stored in the array The array must be passed to the method as an argument.

7. Consider an array that stores the following sequence of integers: 10, 15, 20, 25, 30 Write a Java method that returns the sum of the întegers stored in the array The array must be passed to the method as an argument.

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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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…
Write a java program; User enter number of students Enter number of subjects Store Subject names Store subject marks Calculate Total, average and grade. In each subject find the highest, lowest, median. Note: use methods and arrays.
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.
This is needed in Java
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The program must be in JAVA language Main will contain a Scanner and a declaration of an integer array (but will not allocate the space for it), and some print statements. The rest of main is method calls. read_list: a method to ask the user for an array size to use, allocate the proper memory for the array, prompt the user to enter the data, one element at a time, and return the completed array to the caller. print_list will print a comma separated list of the array elements on one line. avg_list will calculate the average value of all of the elements in the array. print_larger will print those elements of the array which are greater than the average of all of the elements. add_num will ask the user for an integer value between 5 and 10 (including 5 and 10), add that value to each element of the array. The array contents will then be printed again, with their new values, list_sum will add all of the elements of the array together to get a total value of them.
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.…
Write a program to accomplish the following tasks:- a) Write a method to print the ArrayList in the reverse order b) Write a method to sort the ArrayList, and display the data after sorting c) Write a method to print the largest and the smallest element in the ArrayList d) In the main method ask user to enter 10 integers, store them in the ArrayList, pass the ArrayList to above methods, and then display the result after each call.
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: *** *** ***** /**** ***