Answered: Java Script with the following:…

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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Question

Java Script with the following:

-Declare an n x n matrix of double values.

-Write a method that sums all the numbers in the major diagonal using the following header:

public static double sumMajorDiagonal(double[][] m)

-Write a test program/main method that first prompts the user to enter the dimension n of an n x n matrix, then asks them to enter the matrix row by row (with the elements separated by spaces).

-The program should then print out the sum. of the major diagonal of the matrix.

-After finding the summation fill the elements of the major diagonal with the numbers 1 to n and print the new array.

Example: Assume we have this 2Dim array
5327
6904
0876
5469
I highlighted the element of the main diagonal in red color. (try to find what is the relationship among these elements to find them)
In the end, you have to replace these elements with the numbers 1 - n (n here is 4). So that will be like this:
1327
6204
0836
5 46 4

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