java学习之路——小例子（实现输入年份，输出该年份的具体天数信息）

 实现输入年份，输出该年份的具体天数信息。练手的代码：  package com.lcq.ThreadTest; import java.util.Scanner; public class Test2 { /** * 功能：打印出输入年份的每一天的信息 * @version 1.0 * @author lcq */ //countDays(int month, int year)函数用来计算这一年中每个月的天数 int countDays(int month, int year){ int count = -1; switch(month){ case 1: case 3: case 5: case 7: case 8: case 10: case 12: count = 31; break; case 4: case 6: case 9: case 11: count = 30; break; case 2: if(year % 4 == 0) count = 29; else count = 28; if((year % 100 ==0) & (year % 400 != 0)) count = 28; } return count; } public static void main(String[] args) { //初始化该类 Test2 t = new Test2(); System.out.println("请输入year ："); Scanner q=new Scanner(System.in); //y 变量接受输入的year int y=q.nextInt(); //遍历12个月份分别输出每一天 for (int i = 1; i <= 12; i++) { //n变量用于标记该月的天数 int n = 0; n = t.countDays(i,y); for (int j = 1; j <= n; j++) { System.out.println(i + "月" + j +"日"); } } } }