String? 字符串??
?int 整型??
double 雙精度浮點(diǎn)型
char 字符型
boolean? 值? ?true 真? false 假
JIAO jiao = new JIAO()斜姥; 類
PI【】pi = new PI【30】;
String? 字符串??
?int 整型??
double 雙精度浮點(diǎn)型
char 字符型
boolean? 值? ?true 真? false 假
JIAO jiao = new JIAO()斜姥; 類
PI【】pi = new PI【30】;