import java.util.Scanner;//插入扫描仪

public class runnian

{

  public static void main(String[] args)//Sting[] args别忘了写进来

  {

  Scanner s=new Scanner(System.in);//声明扫描仪变量

  System.out.println("请输入年份");//系统提示输入年份

  int nianfen=s.nextInt();//取得下一行输入的年份值

  if(nianfen%400==0){System.out.println(nianfen+"年是闰年");}//判断能否被400整除

  else if(nianfen0==0){System.out.println(nianfen+"年不是闰年");}//判断能否被100整除

     else if(nianfen%4==0){System.out.println(nianfen+"年是闰年");}//判断能否被4整除

     else{System.out.println(nianfen+"年不是闰年");}

  }

}

import java.util.Scanner;

public class runnian

{

  public static void main(String[] args)

  {

  Scanner s=new Scanner(System.in);

  System.out.println("请输入年份");

  int nianfen=s.nextInt();

  if(nianfen%4==0&&nianfen0!=0||nianfen%400==0){System.out.println(nianfen+"年是闰年");}

  //年份能被4整除但不能被100整除，或者年份能被400整除

    else{System.out.println(nianfen+"年不是闰年");}

  }

}