编译时函数cannot be resolved

xiaozhupiggg 2011-04-15 05:01:10

函数功能：
定义一个日期类，有年，月，日属性，包含无参的和有参的构造方法，有完成如下功能的方法：1)、判断该年是否为闰年,2)、判断当月的天数,3)、计算该日期是本年的第多少天,4)，计算本年还剩多少天,在main方法中，输入年，月，日，根据输入创建该类的对象，并调用它的相关方法。

类体：
public class Date {
private int year,month,day;
public int[]a = {0,31,28,31,30,31,30,31,31,30,31,30,31};
public int[]b = {0,31,29,31,30,31,30,31,31,30,31,30,31};
public Date(){

}
public void setYear(int year){
this.year = year;
}
public int getYear(int year){
return year;
}
public void setMonth(int month){
this.month = month;
}
public int getmonth(int month){
return month;
}
public void setDay(int day){
this.day = day;
}
public int getDay(int day){
return day;
}
public Date(int year,int month,int day){

}
public char isLeapYear(int year){
if(year%400==0||year%4==0&&year%100!=0){
return '是';
}else {
return '否';
}
}
public int daysThisMonth(char isLeapYear,int month){
if (isLeapYear=='是'){
return a[month];
}else{
return b[month];
}
}
public int daysThisYear(char isLeapYear,int month,int day){
int sum = 0;
if(isLeapYear=='是'){
for(int i=0;i<month;i++){
sum+=a[i];
}
return sum+day;
}else{
for(int i=0;i<month;i++){
sum+=b[i];
}
return sum+day;
}

}

}

import java.util.Scanner;
public class testDate {

public static void main(String[] args) {
Scanner s = new Scanner(System.in);
System.out.println("请输入年份：");
int year = s.nextInt();
Scanner m = new Scanner(System.in);
System.out.println("请输入月份");
int month = m.nextInt();
System.out.println("请输入日：");
Scanner d = new Scanner(System.in);
int day = d.nextInt();
Date D1 = new Date();
D1.setYear(year);
D1.setMonth(month);
D1.setDay(day);
Date D2 = new Date(2000,2,14);

System.out.println(D1.getYear(year)+"年是闰年吗？"+D1.isLeapYear(year));
System.out.println(D1.getmonth(month)+"月有"+D1.daysThisMonth(isLeapYear, month)+"天");
System.out.println("它是本年的第"+D1.daysThisYear(isLeapYear, month, day)+"天");

}

}

问题：在编译testDate时，倒数两行都显示：isLeapYear cannot be resolved

请教各位大侠~

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