001

第一条,考虑用静态工厂方法代替构造器创建对象

/**
* A constant holding the minimum value an {@code int} can
* have, -2³¹. 
*/

//int类型的最小取值-2的31次方,-2147483648

@Native public static final int MIN_VALUE = 0x80000000;

/**
* A constant holding the maximum value an {@code int} can
* have, 2³¹-1.
*/

//int类型的最大取值2的31次方减一,2147483647
@Native public static final int MAX_VALUE = 0x7fffffff;