january1st.java

1+2+3...累加到最接近2009的数

package javaobj_task1;

import java.util.Scanner;

public class January1st {
	public static void january1st(String[] args) {
		Scanner month = new Scanner(System.in);
		Scanner day = new Scanner(System.in);
		System.out.println("请输入月份：");
		int m = month.nextInt();
		System.out.println("请输入日期：");
		int d = day.nextInt();
		int SumDays=0;
		int days[]={0,31,28,31,30,31,30,31,31,30,31,30,31};
		for(int i=0;i<m;i++){
			SumDays=SumDays+days[i]+d-1;
		}
		System.out.println("这天到元旦一共"+ SumDays +"天");
	}
}