BOOLEAN DIFINITION AND USE A FLAG WITH EXAMPLE

🔹 Definition:
A flag is a boolean variable (either true or false) used to indicate a condition or state in a program. It helps in making decisions using if conditions or loops.

🔹 Why Use a Flag?
To check if something happened or not (like found/not found, valid/invalid, etc.)
Ex

public class FlagExample {
public static void main(String[] args) {
int[] numbers = {2, 4, 6, 7, 8};
boolean foundOdd = false; //

    for (int num : numbers) {
        if (num % 2 != 0) {  // Check for odd number
            foundOdd = true;  // Set flag to true if odd found
            break;
        }
    }

    if (foundOdd) {
        System.out.println("Odd number found!");
    } else {
        System.out.println("All numbers are even.");
    }
}

}

https://www.quora.com/How-can-the-flag-be-used-in-a-Java-program