Floating point number 326-7-3.4 *10 (-38) ~ 3.4 *10 (38)
Bi 6415-16-1.7 *10 (-308) ~1.7 *10 (308)
Long Shuang12818-19-1.2 *10 (-4932) ~1.2 *10 (4932
int long-2 147483648 ~ 2 147483647