Number of Senior Citizens

You are given a 0-indexed array of strings details. Each element of details provides information about a given passenger compressed into a string of length 15. The system is such that:

• The first ten characters consist of the phone number of passengers.

• The next character denotes the gender of the person.

• The following two characters are used to indicate the age of the person.

• The last two characters determine the seat allotted to that person.

Return the number of passengers who are strictly more than 60 years old*.*

LeetCode Problem - 2678

class Solution {
    // Method to count the number of seniors based on their age
    public int countSeniors(String[] details) {
        // Counter to keep track of seniors
        int ans = 0;
        // Iterating through each detail in the array
        for (String detail : details) {
            // Extracting the age from the detail and converting it to an integer
            int age = Integer.parseInt(detail.substring(11, 13));
            // Checking if the age is greater than 60 (considering seniors)
            if (age > 60) {
                // Incrementing the count if the person is a senior
                ans++;
            }
        }
        // Returning the total count of seniors
        return ans;
    }
}