java :输入某年某月某日,判断这一天是这一年的第几天?用for循环怎么解...答:public static void main(String[] args) { int i,j,k,year,month,day;int[] MONTH={0,31,28,31,30,31,30,31,31,30,31,30,31},D;//year,month,day这里写读入年月日,我不会JAVA的,读入函数不会写,你应该会吧麻烦您了 if((year%4==0&&year%100!=0)||year%400==0){ MONTH...