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Java語言程式設計(基礎篇)第十版 4.10

import java.util.Scanner;

public class J4_10 {
		  public static void main(String[] args) {
		    String set1 =
		      " 1  3  5  7\n" +
		      " 9 11 13 15\n" +
		      "17 19 21 23\n" +
		      "25 27 29 31";

		    String set2 =
		      " 2  3  6  7\n" +
		      "10 11 14 15\n" +
		      "18 19 22 23\n" +
		      "26 27 30 31";

		    String set3 =
		      " 4  5  6  7\n" +
		      "12 13 14 15\n" +
		      "20 21 22 23\n" +
		      "28 29 30 31";

		    String set4 =
		      " 8  9 10 11\n" +
		      "12 13 14 15\n" +
		      "24 25 26 27\n" +
		      "28 29 30 31";

		    String set5 =
		      "16 17 18 19\n" +
		      "20 21 22 23\n" +
		      "24 25 26 27\n" +
		      "28 29 30 31";

		    int day = 0;

		    // Create a Scanner
		    Scanner input = new Scanner(System.in);

		    // Prompt the user to answer questions
		    System.out.print("Is your birthday in Set1?\n");
		    System.out.print(set1);
		    System.out.print("\nEnter N for No and Y for Yes: ");
		   
		    String answer1 = input.next();
		
		    if (answer1.startsWith("Y"))
		      day += 1;

		    // Prompt the user to answer questions
		    System.out.print("\nIs your birthday in Set2?\n");
		    System.out.print(set2);
		    System.out.print("\nEnter 0 for No and 1 for Yes: ");

		    String answer2 = input.next();

		    if (answer2.startsWith("Y"))
		      day += 2;

		    // Prompt the user to answer questions
		    System.out.print("Is your birthday in Set3?\n");
		    System.out.print(set3);
		    System.out.print("\nEnter 0 for No and 1 for Yes: ");

		    String answer3 = input.next();

		    if (answer3.startsWith("Y"))
		      day += 4;

		    // Prompt the user to answer questions
		    System.out.print("\nIs your birthday in Set4?\n");
		    System.out.print(set4);
		    System.out.print("\nEnter 0 for No and 1 for Yes: ");

		    String answer4 = input.next();

		    if (answer4.startsWith("Y"))
		      day += 8;

		    // Prompt the user to answer questions
		    System.out.print("\nIs your birthday in Set5?\n");
		    System.out.print(set5);
		    System.out.print("\nEnter 0 for No and 1 for Yes: ");

		    String answer5 = input.next();

		    if (answer5.startsWith("Y"))
		      day += 16;

		    System.out.println("\nYour birthday is " + day + "!");
		  }
		}