確認對話框

新手學習筆記：之前學過使用showMessageDialog來顯示一個消息對話框，今晚學習使用showInputDialog來顯示一個輸入對話框，但是還是不是很理解；

1、使用以下語句可以創建一個確定對話框：int option = JOptionPane.showConfirmDialog (null,"Continue");

點擊按鈕時，此方法會返回一個選擇值，分別是JOptionPane.YES_OPTION(0)、JOptionPane.NO_OPTION(1)和JOptionPane.CANCEL_OPTION(2)

//確認對話框，猜生日程序
import java.util.Scanner;

import javax.swing.JOptionPane;
public class Study4 {
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 10 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;
		int answer = JOptionPane.showConfirmDialog(null,
				"Is your brithday in these number?\n" + set1);
		if (answer == JOptionPane.YES_OPTION)
			day += 1;
		answer = JOptionPane.showConfirmDialog(null,
				"Is your brithday in these number?\n" + set2);
		if (answer == JOptionPane.YES_OPTION)
			day += 2;
		answer = JOptionPane.showConfirmDialog(null,
				"Is your brithday in these number?\n" + set3);
		if (answer == JOptionPane.YES_OPTION)
			day += 4;
		answer = JOptionPane.showConfirmDialog(null,
				"Is your brithday in these number?\n" + set4);
		if (answer == JOptionPane.YES_OPTION)
			day += 8;
		answer = JOptionPane.showConfirmDialog(null,
				"Is your brithday in these number?\n" + set5);
		if (answer == JOptionPane.YES_OPTION)
			day += 16;
		JOptionPane.showMessageDialog(null, "Your birthday is " +
				day + " !");
}}