java中比较double大小

Double obj1 = new Double(“8.5”);
Double obj2 = new Double(“11.50”);
int retval = obj1.compareTo(obj2);
if(retval > 0) {
System.out.println(“obj1比obj2大”);
}
else if(retval < 0) {
System.out.println(“obj1比obj2小”);
}
else {
System.out.println(“obj1和obj2一样大”);
}