import java.text.DecimalFormat;
import java.util.*;
public class acm {
       public static void main(String args[]) throws Exception {
		float[] a = new float[12];
		float j = 0;
                  for (int i = 0; i < 12; i++) {
		     Scanner cin = new Scanner(System.in);
		     a[i] = cin.nextFloat();
		     j = a[i] + j;
		}
		j = j / 12;
		DecimalFormat formatter = new DecimalFormat("#.00");
                  Currency currency = Currency.getInstance(Locale.US);
                  String symbol = currency.getSymbol(Locale.US);
		String r = formatter.format(j);
                  System.out.print(symbol + r);
	}

}

• 把Scanner cin = new Scanner(System.in); 放外边试试 (15) judas 2006-04-19 11:45:03
  • Re:把Scanner cin = new Scanner(System.in); 放外边试试 (66) seu_cose 2006-04-19 11:56:23
• public class Main (0) cuiaoxiang 2006-04-19 11:54:44
  • Re:public class Main (31) seu_cose 2006-04-19 11:57:36
  • class Main要好些，呵呵 (0) Sempr 2006-04-19 15:28:47