JAVA中每个类型占用多少字节

 public static void main(string[] args) {
        system.out.println((byte.size) / 8);//1
        system.out.println((integer.size) / 8);//4
        system.out.println((short.size) / 8);//2
        system.out.println((long.size) / 8);//8
        system.out.println((float.size) / 8);//4
        system.out.println((double.size) / 8);//8
        system.out.println((character.size) / 8);//2
    }