猜生日

• Set1 二进制为：xxxx1

1	3	5	7
9	11	13	15
17	19	21	23
25	27	29	30

• Set2 二进制为：xxx1x

2	3	6	7
10	11	14	15
18	19	22	23
26	27	30	31

• Set3 二进制为：xx1xx

4	5	6	7
12	13	14	15
20	21	22	23
28	29	30	31

• Set4 二进制为：x1xxx

8	9	10	11
12	13	14	15
24	25	26	27
28	29	30	31

• Set5 二进制为：1xxxx

16	17	18	19
20	21	22	23
24	25	26	27
28	29	30	31

无GUI实现

import javax.swing.JOptionPane;
import java.util.*;
class Main {
  
  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.println("Is your birthday in Set1?");
    System.out.println(set1);
    System.out.println("Enter 0 for No and 1 for Yes:");
    int answer = input.nextInt();

    if(answer == 1)
      day += 1;
    
    //Prompt the user to answer questions
    System.out.println("Is your birthday in Set2?");
    System.out.println(set2);
    System.out.println("Enter 0 for No and 1 for Yes:");
    answer = input.nextInt();

    if(answer == 1)
      day += 2;

    //Prompt the user to answer questions
    System.out.println("Is your birthday in Set3?");
    System.out.println(set3);
    System.out.println("Enter 0 for No and 1 for Yes:");
    answer = input.nextInt();

    if(answer == 1)
      day += 4;

    //Prompt the user to answer questions
    System.out.println("Is your birthday in Set4?");
    System.out.println(set4);
    System.out.println("Enter 0 for No and 1 for Yes:");
    answer = input.nextInt();

    if(answer == 1)
      day += 8;

    //Prompt the user to answer questions
    System.out.println("Is your birthday in Set5?");
    System.out.println(set5);
    System.out.println("Enter 0 for No and 1 for Yes:");
    answer = input.nextInt();

    if(answer == 1)
      day += 16;

    System.out.println("Your birthday is " + day + "!");

    
	}
}

GUI实现

import javax.swing.JOptionPane;
import java.util.*;
class Main {
  
  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;
  
    //Prompt the user to answer questions
    int answer = JOptionPane.showConfirmDialog(null, "Is your birthday in these numbers?\n" + set1);
    if(answer == JOptionPane.YES_OPTION){
      day += 1;
    }
    
    answer = JOptionPane.showConfirmDialog(null, "Is your birthday in these numbers?\n" + set2);
    if(answer == JOptionPane.YES_OPTION){
      day += 2;
    }

    answer = JOptionPane.showConfirmDialog(null, "Is your birthday in these numbers?\n" + set3);
    if(answer == JOptionPane.YES_OPTION){
      day += 4;
    }

    answer = JOptionPane.showConfirmDialog(null, "Is your birthday in these numbers?\n" + set4);
    if(answer == JOptionPane.YES_OPTION){
      day += 8;
    }

    answer = JOptionPane.showConfirmDialog(null, "Is your birthday in these numbers?\n" + set5);
    if(answer == JOptionPane.YES_OPTION){
      day += 16;
    }

    JOptionPane.showMessageDialog(null, "Your birthday is " + day + "!");
	}
}