달력 , 전달과 앞달까지 나오는 달력

package calender_b; import java.util.Scanner; public class Cal { public static void main(String[] args) { // TODO Auto-generated method stub int m[]={31,28,31,30,31,30,31,31,30,31,30,31}; String week[]={"일","월","화","수","목","금","토"}; Scanner str=new Scanner(System.in); System.out.print("년도를 입력하시오."); int year=str.nextInt(); System.out.print("월을 입력하시오."); int month=str.nextInt(); System.out.println(year+"년"+month+"월"); for(int i=0;i<7;i++){ System.out.print(week[i]+"\t"); } System.out.println(); i...