检查闰年的方法

class MyDate

{

　　private static int[] Months=new int[13]{0,31,28,31,30,31,30,31,31,30,31,30,31}

　　private int year

　　private int month

　　private int day

　　

　　//公有的方法,对外提供的服务

　　public MyDate()

　　{

　　　　year=1900

　　　　month=1

　　　　day=1 　　

　　}

　　public MyDate(int year,int m,int d)

　　{

　　　　SetDate(year,m,d)

　　}

　　

　　private void SetDate(int y,int m,int d)

　　{

　　　　this.year= CheckYear(y)

　　　　this.month = CheckMonth(m

　　　　this.day = CheckDay(d)

　　}-Check the leap year means class MyDate {private static int [] Months = new int [13] {0,31,28,31,30,31,30,31,31,30,31,30,31}　private int year　 private int month　private int day // public method to provide the service of external public MyDate () {year = 1900　month = 1　day = 1 } public MyDate (int year, int m, int d) { SetDate (year, m, d) } private void SetDate (int y, int m, int d) {this.year = CheckYear (y)　this.month = CheckMonth (m　this.day = CheckDay (d)　}