**Java Array Handling - Educational Resource****a) Handling 2D Arrays in Java:**This section aims to demonstrate how to manage 2D arrays in Java through coding examples.1. **Declaration and Creation of a 2D Array:** Write only one statement to declare and create a variable `dArr` of a 2D array of `double`, with 3 rows and 6 columns: ```java double[][] dArr = new double[3][6]; ``` This line of code accomplishes the following: - `double[][]` specifies that `dArr` is a 2D array of type `double`. - `new double[3][6]` creates a 2D array with 3 rows and 6 columns.2. **Nested `for` Loop to Populate the Array:** Further, write a nested `for` loop to set each element in the 2D array with the result value of the summation of its two index numbers: ```java for (int i = 0; i < dArr.length; i++) { for (int j = 0; j < dArr[i].length; j++) { dArr[i][j] = i + j; } } ``` Here is how this loop works: - The outer loop (`for (int i = 0; i < dArr.length; i++)`) iterates over each row of the array. - The inner loop (`for (int j = 0; j < dArr[i].length; j++)`) iterates over each column within the current row. - `dArr[i][j] = i + j;` sets the value of each array element to the sum of its row index (`i`) and column index (`j`).By running this code, each element in `dArr` will be populated with the value obtained by summing its respective indices. This approach is useful for initializing an array with predictable and simple calculated values, often facilitating debugging and validation processes.

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a) Write Java code fragment for handling 2D array, as required below: O Write only one statement to declare and create a variable dArr of 2D array of double, with 3 rows and 6 columns. Further write a nested for loop, to set each element in the 2D array with the result value of the summation of its two index numbers. O

a) Write Java code fragment for handling 2D array, as required below: O Write only one statement to declare and create a variable dArr of 2D array of double, with 3 rows and 6 columns. Further write a nested for loop, to set each element in the 2D array with the result value of the summation of its two index numbers. O

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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