Is This a Valid Date?

/*
 * Problem : Process text.
 * Input   : One line of text.
 * Output  : true or false.
 * Approach: Table of month lengths.
 * Time    : O(1)
 * Space   : O(1)
 * Java    : 8 or newer.
 */
import java.util.Scanner;

public class Main {
    // This method solves the task. It receives the input and returns the answer.
    static boolean solve(String s) {
        // Step 1: Read day, month and year from the line.
        String[] part = s.trim().split("\\s+");
        int day = Integer.parseInt(part[0]);
        int month = Integer.parseInt(part[1]);
        int year = Integer.parseInt(part[2]);

        // Step 2: Check the simple limits first.
        if (year < 1 || month < 1 || month > 12 || day < 1) {
            return false;
        }

        // Step 3: February has 29 days in a leap year. Look up the days of the month in a table.
        boolean leap = (year % 4 == 0 && year % 100 != 0) || year % 400 == 0;
        int[] days = {31, leap ? 29 : 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
        return day <= days[month - 1];
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.hasNextLine() ? scanner.nextLine() : "";
        System.out.println(solve(s));
    }
}