To implement Java program using Array.

Explanation

This Java program is designed to calculate the total sum of all numerical values stored within an array. The logic follows a linear traversal approach:

1. Array Initialization: The program starts by defining an integer array named arr and populating it with five values: 1, 2, 3, 4, and 5.
2. Accumulator Setup: A variable named sum is initialized to 0. This variable acts as an "accumulator" that will hold the running total as we process each element.
3. Iteration (The Loop): The program uses a for loop to visit every index of the array. It starts at index 0 and continues until it reaches the end of the array (determined by arr.length).
4. Addition: During each step of the loop, the program takes the value at the current index (arr[i]) and adds it to the current value of sum using the addition assignment operator (+=).
5. Output: Once the loop has finished visiting every element, the final value stored in sum is printed to the console.

Algorithm

1. Start the program.
2. Initialize an integer array arr with a set of predefined values.
3. Declare an integer variable sum and set its initial value to 0.
4. Repeat the following steps for each index i from 0 to arr.length - 1:
   • Access the element at arr[i].
   • Add the value of arr[i] to the current value of sum.
5. Display the final value of sum as the output.
6. End the program.