1,
public class Demo1 {
public static void main(String[] args) {
short s = 1;
//s = s + 1; //報錯
s += 1; //正常
}
}
public static void main(String[] args) {
System.out.println(3*0.1 == 0.3); //false,0.1默認爲double型
}
}
1,
public class Demo1 {
public static void main(String[] args) {
short s = 1;
//s = s + 1; //報錯
s += 1; //正常
}
}
import java.lang.reflect.Field; public class CommonUtils { /** * 是否是8種基本數據類型 * @param value * @