Complete the sumOfDiagonals method in SumOfDiagonals.java to do the following: The method takes a 2D String array x as a parameter and returns no value. The method should calculate and print the sum of the elements on the major diagonal of the array x. In order to have a major diagonal, the array passed into the method should be a square (n-by-n), if it's not a square your program should handle that situation by throwing an exception. (Do Not worry about ragged arrays)
Complete the sumOfDiagonals method in SumOfDiagonals.java to do the following: The method takes a 2D String array x as a parameter and returns no value. The method should calculate and print the sum of the elements on the major diagonal of the array x. In order to have a major diagonal, the array passed into the method should be a square (n-by-n), if it's not a square your program should handle that situation by throwing an exception. (Do Not worry about ragged arrays)
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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side note- please don’t use String [] [] s4 because it is not listed in the code
public class SumOfDiagonals
{
public static void main(String[] args)
{
String[][] s1 = {{"2", "3", "4"},
{"5", "6", "7"},
{"8", "9", "10"}};
String[][] s2 = {{"1", "2", "3"},
{"5", "6", "7"},
{"9", "10", "11"},
{"13", "14", "15"}};
String[][] s3 = {{"1", "2", "3", "4"},
{"5", "6", "7", "8"},
{"9", "10", "11", "12"},
{"13", "14", "15", "16"}};
try
{
sumOfDiagonals(s1);
sumOfDiagonals(s2);
sumOfDiagonals(s3);
}
catch(NumberFormatException ex)
{
System.out.println("Not a valid integer");
}
catch(IllegalArgumentException ex)
{
System.out.println("Array not a square");
}
}
public static void sumOfDiagonals(String[][] x)
{
//TODO Complete this method as required in the homework instructions
}
}
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