问题描述

java小白求解，下面的代码是按照书上的例子抄下来的，不明白为什么报错。

代码如下：主要问题就是报错的地方：已经用注释吧报错贴上：还看不懂这个报错，求大神帮助：
package Calendar;

import java.util.Scanner;

public class Calendar {

public static void main(String[] args) {    Scanner in = new Scanner(System.in);    System.out.println(""请输入您想查询的年份："");    int year = in.nextInt();    System.out.println(""请输入您想查询的月份："");    int month = in.nextInt();    rili(yearmonth);}public static void rili(int yearint month){    rilitou(yearmonth);    riliti(yearmonth);}public static void rilitou(int yearint month){    System.out.println(""ttt""+year+""年""+month+""月""+""ttt"");    System.out.println(""==================================================="");    System.out.println(""星期一t星期二t星期三t星期四t星期五t星期六t星期日"");}public static void riliti(int yearint month){    int shouri=diyitian(yearmonth);    int quyuetianshu=yuetianshu(yearmonth);    int i=0;    for(i=0;i<shouri;i++){        System.out.println(""      "");    }    for(i=1;i<=quyuetianshu;i++){        System.out.printf(""%4d""i);    }    if((i+shouri)%7==0){        System.out.println();    }    System.out.println();}public static int diyitian(int yearint month){    final int qishiri = 3;    int zongtianshu = quzongtianshu(yearmonth);    return (zongtianshu+qishiri)%7;}public static int quzongtianshu(int yearint month){    int total= 0;    for(int i=1800;i<year;i++){        if(runnian(i)){            total+=366;        }else{            total+=365;        }    }    for(int i=1;i<month;i++){        total = total+yuetianshu(yeari);    }    return total;}public static int yuetianshu(int yearint month){    if(month==1||month==3||month==5||month==7||month==8||month==10||month==12){        return 31;    }    if(month ==4||month==6||month==9||month==11){        return 30;    }    if(month==2){        return runnian(year)?29:28;    }else{    return 0;    }    public static boolean runnian(int year){    /**    *Multiple markers at this line     Duplicate local variable year     Syntax error on token "")"" ; expected     Syntax error on token ""("" ; expected     Illegal modifier for parameter runnian; only final is      permitted        */        return year%400==0||(year%4==0&&year%100!=0);        /**Multiple markers at this line           The operator % is undefined for the argument type(s)            boolean int           Cannot cast from int to boolean           Type mismatch: cannot convert from boolean to int        */    }}

}

解决方案

看着括号不匹配了吧

 if(month==2){        return runnian(year)?29:28;    }else{    return 0;    }  这里是不是少了}，runnian这个方法在yuetianshu里面了。    public static boolean runnian(int year){

解决方案二：
boolean
->
Boolean

解决方案三：
public static boolean runnian(int year) 前面差一个 “｝”