For this assignment you will be working with arrays and File I/O. Open a new Java file called Nums.java Prompt a user to enter the name of a text file containing a series of numbers. Important Note: the user should be able to type the name any file that is contained inside their own personal Assignment 18 Java project in Eclipse. Open the file for reading. The first line of the text file will contain the number of numbers in the file. Declare an array of the length specified on this first line of the text file. The subsequent line in the text file will contain a sequence of double numbers - the exact number indicated in the first line of the file. Read this sequence of numbers into the array using a for loop. Using the same, or a second, for loop, sum the numbers and report their sum to the user. Also, multiply the numbers together and report their product to the user. Then, print this information in a text file named results.txt. The sum and the product should be printed to one decimal value only. Your program should work identically to the sample output below. Sample input file: 4 3.2 6.7 2.9 4.6 Sample console output: Welcome! Enter the name of an input file: in1.txt There are 4 numbers in the file.The sum of the numbers is 17.4The product of the numbers is 286.0 Sample file output in results.txt: The sum of the numbers is 17.4 The product of the numbers is 286.0

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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For this assignment you will be working with arrays and File I/O.
Open a new Java file called Nums.java
Prompt a user to enter the name of a text file containing a series of numbers.
Important Note: the user should be able to type the name any file that is contained inside their own personal Assignment 18 Java project in Eclipse.
Open the file for reading.
The first line of the text file will contain the number of numbers in the file.
Declare an array of the length specified on this first line of the text file.
The subsequent line in the text file will contain a sequence of double numbers - the exact number indicated in the first line of the file.
Read this sequence of numbers into the array using a for loop.
Using the same, or a second, for loop, sum the numbers and report their sum to the user.
Also, multiply the numbers together and report their product to the user.
Then, print this information in a text file named results.txt.
The sum and the product should be printed to one decimal value only.
Your program should work identically to the sample output below.

Sample input file:

4
3.2 6.7 2.9 4.6

Sample console output:

Welcome!
Enter the name of an input file: in1.txt
There are 4 numbers in the file.The sum of the numbers is 17.4The product of the numbers is 286.0

Sample file output in results.txt:

The sum of the numbers is 17.4
The product of the numbers is 286.0

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