Write a Java program to check if the sum of all the 10's in the array is exactly 30. Return false if the condition does not satisfy, otherwise true.

1. Break Down the Problem

To solve the problem, we need to:

1. Create a method that takes an array as an argument.
2. Loop through the array to find all occurrences of the number 10.
3. Calculate the sum of these occurrences.
4. Return true if the sum is exactly 30; otherwise, return false.

2. Relevant Concepts

We'll use:

• A loop to iterate through the array.
• A conditional statement to check for the number 10.
• An integer variable to maintain the sum of found 10s.

3. Analysis and Detail

Here’s the flow of the program:

• Initialize a sum variable to zero.
• For each element in the array, check if it is 10.
• If it is, add it to the sum.
• At the end of the loop, compare the sum to 30 and return the appropriate boolean value.

4. Verify and Summarize

The logic of the code ensures that we accurately check for the sum of 10’s. If the sum equals 30 after checking all elements, we return true; otherwise, false.

Final Answer

Here's the Java program to implement the solution:

public class SumOfTens {
    public static boolean checkSumOfTens(int[] arr) {
        int sum = 0;
        for (int i = 0; i < arr.length; i++) {
            if (arr[i] == 10) {
                sum += arr[i];
            }
        }
        return sum == 30;
    }

    public static void main(String[] args) {
        int[] exampleArray = {10, 10, 10, 10}; // Change this array for testing
        System.out.println(checkSumOfTens(exampleArray)); // Output will be true or false
    }
}

This code will check if the total of all the 10's in the provided array equals 30. Adjust the exampleArray as necessary to test different cases.