直接上代码:
public static void main(String[] args) {
double db1 = 87406.70;
double db2 = 778.93;
double result = db1 + db2;
System.out.println(result);
BigDecimal b = new BigDecimal(result);
result = b.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
System.out.println(result);
}