~~~ java
import java.util.Scanner;

public class Main {

public static void main(String[] args) {
    int end_day[] = new int[]{31,28,31,30,31,30,31,31,30,31,30,31};
    Scanner sc = new Scanner(System.in);
    int cases = sc.nextInt();
    while (cases-- > 0) {
        int month = sc.nextInt();
        int last_month = month==1?11:month-2;
        int day = sc.nextInt();
        String week = sc.next();
        int index;
        if(week.equals("Sunday"))
            index = 1;
        else if(week.equals("Monday"))
            index = 2;
        else if(week.equals("Tuesday"))
            index = 3;
        else if(week.equals("Wednesday"))
            index = 4;
        else if(week.equals("Thursday"))
            index = 5;
        else if(week.equals("Friday"))
            index = 6;
        else
            index = 7;

// int index = week.equals("Sunday")?1:week.equals("Monday")?2:week.equals("Tuesday")?3:week.equals("Wednesday")?4:week.equals("Sunday")?5:week.equals("Friday")?6:7;
int weeks[] = new int[7];
for(int i=1;7>=i;i++){
int print = day-index+i<1?end_day[last_month]+(day-index+i):(day-index+i>end_day[month]?day-index+i-end_day[month]:day-index+i);
weeks[i-1]=print;
}
String output = weeks[0]+" "+weeks[1]+" "+weeks[2]+" "+weeks[3]+" "+weeks[4]+" "+weeks[5]+" "+weeks[6];
System.out.println(output);

    }
}

}
~~~

주일달력문제입니다.

자꾸 런타임 에러가 발생하는데 무엇이 문제인지 모르겠네요..
예상으로는 ""으로 String부분이 에러가 나는것 같은데.. 모르겠네요.. 물논 콘솔이나 이클립스 실행은 잘됩니다.