wannianli.java

一个简单java程序 实现了一年中任一天星期的计算 一个经过修改的java程序

package wan;
import javax.swing.*;
/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2008</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
public class wannianli {


    public static void main(String[] args) {
        wannianli wannianli = new wannianli();

        String y=JOptionPane.showInputDialog("Please enter the year:");
        int year=Integer.parseInt(y);

        String m=JOptionPane.showInputDialog("please enter the month:");
        int month=Integer.parseInt(m);

        String t=JOptionPane.showInputDialog("please enter the day:");
        int day=Integer.parseInt(t);

        if(month==1||month==2)
        {
            month+=12;year--;}

        }
        int result=(d+1+2*m+3*(m+1)/5+year+(year/4)-year/100+year/400)%7 ;

        switch(result)
        {
        case 0: System.out.println("SUN"); break;
        case 1: System.out.println("MON"); break;
        case 2: System.out.println("TUE"); break;
        case 3: System.out.println("WED"); break;
        case 4: System.out.println("THU"); break;
        case 5: System.out.println("FRI"); break;
        case 6: System.out.println("SAT"); break;
        }
    }
    }