Lecture Videos
import java.util.Scanner;

public class GuessBirthdayUsingArray {
  public static void main(String[] args) {
    int day = 0; // Day to be determined
    int answer;

    int[][][] dates = {
      {{ 1,  3,  5,  7},
       { 9, 11, 13, 15},
       {17, 19, 21, 23},
       {25, 27, 29, 31}},
      {{ 2,  3,  6,  7},
       {10, 11, 14, 15},
       {18, 19, 22, 23},
       {26, 27, 30, 31}},
      {{ 4,  5,  6,  7},
       {12, 13, 14, 15},
       {20, 21, 22, 23},
       {28, 29, 30, 31}},
      {{ 8,  9, 10, 11},
       {12, 13, 14, 15},
       {24, 25, 26, 27},
       {28, 29, 30, 31}},
      {{16, 17, 18, 19},
       {20, 21, 22, 23},
       {24, 25, 26, 27},
       {28, 29, 30, 31}}};
    
    // Create a Scanner
    Scanner input = new Scanner(System.in);

    for (int i = 0; i < 5; i++) {
      System.out.println("Is your birth day in Set" + (i + 1) + "?");       
      for (int j = 0; j < 4; j++) {
        for (int k = 0; k < 4; k++)
          System.out.printf("%4d", dates[i][j][k]);
        System.out.println();
      }

      System.out.print("\nEnter 0 for No and 1 for Yes: ");
      answer = input.nextInt();

      if (answer == 1)
        day += dates[i][0][0];
    }

    System.out.println("Your birth day is " + day);
  }
}