Java Scanner Input Validation

Develop code to read input.

A programmer writes the following method to read and validate user input:

public static int getValidScore() {
    Scanner scan = new Scanner(System.in);
    System.out.print("Enter a score (0-100): ");
    
    while (!scan.hasNextInt()) {
        System.out.print("Invalid input. Enter an integer: ");
        scan.next(); // Clear invalid input
    }
    
    int score = scan.nextInt();
    
    while (score < 0 || score > 100) {
        System.out.print("Score must be 0-100. Try again: ");
        while (!scan.hasNextInt()) {
            System.out.print("Invalid input. Enter an integer: ");
            scan.next();
        }
        score = scan.nextInt();
    }
    
    return score;
}

What is the primary purpose of the scan.next() statements in this method?