1.1 2.9 1.1111111111 2.3444323343 1 1.1
4 3.4555434454 2.1
import java.math.BigDecimal;
import java.util.*;
public class Main {
public static void main(String[] args) {
BigDecimal a, b, c;
Scanner cin = new Scanner(System.in);
while (cin.hasNext()) {
a = cin.nextBigDecimal();
b = cin.nextBigDecimal();
c = a.add(b);
if (c.compareTo(BigDecimal.ZERO) == 0)
System.out.println("0");
else
System.out.println(c.stripTrailingZeros().toPlainString());
}
}
}
原文：http://blog.csdn.net/wtyvhreal/article/details/42443189