Answered: First Array In this lab you will be creating your first integer array, populate it and update each index by using a loop. Type up the code below, execute the...

Database System Concepts

7th Edition

ISBN: 9780078022159

Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher: McGraw-Hill Education

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Array

The simplest way to start thinking about an array is as a collection, or a set of elements. In programming, these elements may be constants, variables, functions and pointers.

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Transcribed Image Text:**Java II: First Array** In this lab, you will be creating your first integer array, populating it, and updating each index using a loop. Type up the code below, execute the program, and submit ONLY the results. ```java public class ArrayTesting { public static void main(String[] args) { int[] myIntArr = {2, 4, 6, 8, 10}; for (int x = 0; x < 5; x++) { System.out.println("Original value of index " + x + ": " + myIntArr[x]); myIntArr[x] += 10; System.out.println("The updated value of index " + x + ": " + myIntArr[x]); } } } ``` **Explanation:** - The program defines a class called `ArrayTesting`. - Inside the `main` method, it initializes an integer array `myIntArr` with the values `{2, 4, 6, 8, 10}`. - A `for` loop iterates through the array indices from `0` to `4`. - For each index `x`, it first prints the original value of the current array element. - It then updates the current array element by adding `10` to its original value. - Finally, it prints the updated value. **Purpose:** This exercise demonstrates how to manipulate array elements using loops in Java. It shows updating array values through arithmetic operations, enabling students to understand basic array handling concepts.

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Step 1

In the given program,

First, we create an array named myIntArr of integer type and assign 5 values to it.
Then create a for loop and iterate from x=0 to 4.
- Use x as an index of the array to access each element of the array and display it.
- Add the value 30 to the array element at index x.
- Print the updated value of the element at index x.

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