a. Write a Java method named sumMajorDiagonal that takes one square 2D array called data and returns the sum of all the numbers in the major diagonal in an n x n matrix of double values. b. Write a Java class called TwoDimArray that: o Declares a 2D array variable with name arr2D with 4 rows and 4 columns. o Reads from the user the values to be saved in the 2D array arr2D. o Call the method sumMajorDiagonal() to compute the sum of all the numbers in the major diagonal in the 2D array arr2D. o Print the resultant sum of all the numbers in the major diagonal in the 2D array arr2D. Sample Run: Enter a 2D array with 4 rows and 4 columns: 1.0 2.9 3.76 4.06 2.8 6.5 4.50 5.49 7.7 5.2 11.6 4.11 1.8 2.4 3.35 16.0 Sum of the numbers in the major diagonal is 34.5 Explanation: 1.0 + 6.5 + 11.6 + 16.0 = 34.5 %3D

a. Write a Java method named sumMajorDiagonal that takes one square 2D array called data and returns the sum of all the numbers in the major diagonal in an n x n matrix of double values. b. Write a Java class called TwoDimArray that: o Declares a 2D array variable with name arr2D with 4 rows and 4 columns. o Reads from the user the values to be saved in the 2D array arr2D. o Call the method sumMajorDiagonal() to compute the sum of all the numbers in the major diagonal in the 2D array arr2D. o Print the resultant sum of all the numbers in the major diagonal in the 2D array arr2D. Sample Run: Enter a 2D array with 4 rows and 4 columns: 1.0 2.9 3.76 4.06 2.8 6.5 4.50 5.49 7.7 5.2 11.6 4.11 1.8 2.4 3.35 16.0 Sum of the numbers in the major diagonal is 34.5 Explanation: 1.0 + 6.5 + 11.6 + 16.0 = 34.5 %3D

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

See similar textbooks

Related questions

Q: Create a JAVA simply programs that manages scores following a 2-dimensional array, students can be…

A: I have implemented the requirements as per specification. The code for the above is: import…

Q: 1. Create a java program from the supplied starter code: TestRecursion.java. 2. The array given can…

A: Here i code as you mentioned in question in java. bubleSortRecur() BinarySearchRecur() main()

Q: IN JAVA: Write a program to ask the user for the size of the 2D double array, then prompt the user…

A: Java:Java is a network-centric, object-oriented, multi-platform language that may function as a…

Q: Write a C# program that creates an array of 50 doubles. You should then write METHODS to do the…

A: Given question: An array has 50 values of double data types. Perform following operations on array…

Q: In Java: Ask the user to enter the size of an array. It must be greater than 0. Write a method,…

A: Step 1 : Start Step 2 : Define the method inputValidation() which inputs the array size from the…

Q: Write a java program that: 1. Prompts the user to enter an integer representing the size of an array…

A: Solution: Given, 1. Prompts the user to enter an integer representing the size of an array of…

Q: Code an exam in Java that repeatedly asks the user to enter the capital for a province in Canada.…

A: PROGRAM INTRODUCTION: Import the required libraries. Start the definition of the main function.…

Q: double[][] studentGrade={{10,20,0},{20,40,0}}; A method called computeAvg will take this 2-D array…

A: ALGORITHM:- 1. Declare and initialise the studentGrade array. 2. Pass it to the computeAvg() method.…

Q: we want to map out a garden in a coordinate plane using integers. O will represent an empty space…

A: Introduction Arrays In Java: A collection of variables with similar types that are referred to as an…

Q: in Java Develop a method called normalizeGrades() in Java following the details below: The method…

A: Use a loop to iterate over the given grades and then fill the integer array and then the character…

Q: Please help me solve this with java 1-method called printArray that takes an array of double…

A: Answer: We have done code in java programming language and also we have attached code and code…

Q: Write a static method that accepts an array of integers as a parameter and performs a scan though…

A: Actually, array is a collection of elements.

Q: Write two overloaded methods in a class named AverageOfArray that return the average of an array…

A: 1) Below is JAVA program that write two overloaded methods in a class named AverageOfArray that…

Q: Another way to write this java applacation? Write an application that inputs five numbers, each…

A: import java.util.Scanner;public class DuplicateElimination { public static void main(String[]…

Q: NOTE: The Array, ArrayList or List class may not be used Write a program that will create an invoice…

A: 1. Define the Inventory class with private instance variables itemName, price, and quantity. Include…

Q: Create a Java program with a method that searches an integer array for a specified integer value…

A: code- import java.util.Scanner; public class Main{ public static int returnindex(int[] haystack ,…

Q: Write a program named GradeStats.java then implement the following method: public static int[]…

A: Start Initialize array Find maximum Find minimum Find sum and then average Find number of grades…

Q: Write a void method named MinMaxRange that includes a loop that asks a user to enter a number until…

A: java.util.Scanner is imported for taking input from the user. sc is an object of the Scanner class.…

Question

a. Write a Java method named sumMajorDiagonal that takes one square 2D array
called data and returns the sum of all the numbers in the major diagonal in an n x n
matrix of double values.
b. Write a Java class called TwoDimArray that:
o Declares a 2D array variable with name arr2D with 4 rows and 4 columns.
o Reads from the user the values to be saved in the 2D array arr2D.
o Call the method sumMajorDiagonal() to compute the sum of all the numbers in
the major diagonal in the 2D array arr2D.
o Print the resultant sum of all the numbers in the major diagonal in the 2D array
arr2D.
Sample Run:
Enter a 2D array with 4 rows and 4 columns:
1.0
2.9 3.76 4.06
2.8
6.5
4.50
5.49
7.7
5.2
11.6
4.11
1.8
2.4
3.35 16.0
Sum of the numbers in the major diagonal is 34.5
Explanation: 1.0 + 6.5 + 11.6 + 16.0 = 34.5

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Key Points to Know

VIEW

Source Code

VIEW

Screenshot of Source Code

VIEW

Output

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

Write a program called Range_array.java that has a method with one integer array and two integers position1 and position2 as parameters, where 0<=position1<=position2<=a.length-1. The method should construct and return an array that is identical to the given array, but with the values in position1 through position2 deleted. The output should look exactly like what is pictured below please. The code must be editable, and all variables defined within please.
Write a complete Java program named Transpose that contains the following: The main method asks the user to provide n - the number of rows and m – the number of columns for a rectangular matrix of integers from 2 to 10. The main method calls the matrixSetUp() method which creates a rectangular matrix of specified dimensions and populates it with random integers from 0 to 99. Hint: You can use Math.random() to generate random numbers. The main method prints the matrix created by the matrixSetUp () method in the form of a matrix. Hint: in order to print the array in the example format, you can use Arrays.toString(matrix[row]) to print each row. The main method calls the matrixTranspose() method that creates and returns a transpose of the initial matrix. Hint: matrix transpose means: ��[��][��]=�[��][��] The main method prints the transpose of the matrix.
please answer question in java, thanks
2. Write a method that takes a rectangular two-dimensional array of type int and returns a valu of type int. The method returns the number of rows with negative sum. A row has a negative s if the sum of all its elements is less than 0. public static int countNegativeSum(int[][] in) Taken array Result 1 -3 17 -5 -5 14 -5 -2 30 -19 -8 -8 1 1 3 -1 -4 78 8 -3 -5 -1 -1 3 -4