public class DateTypeTest {
public static void main(String[] args) {
// TODO Auto-generated method stub
float f = 3.14F;
long l = 9223372036854775807L;
//Type mismatch: cannot convert from float to long
f = f + l;
//long(8)与float(4)的取值范围谁大谁小
//回答:float的计算值的方式与long类型不一样
//float = (-1)^s*M*2^E ,E的取可以取到127
//long的最大值2^63-1,float的指数比long大,所以float的取值范围大
}
}