java输出结果如何保留两位小数
fjlsl 2012-01-18 02:46:28 下面程序输出结果如何保留两位小数
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner cin = new Scanner(System.in);
double a, b,ave;
while (cin.hasNext()) {
a = cin.nextDouble();
b = cin.nextDouble();
ave=(a+b)/2;
System.out.println(ave);
}
}
}
Sample Input
5.1 -3
Sample Output
1.05