我需要一个与Integer完全相同的数据类型,我希望它能溢出并下溢到某些值。换句话说,我想设置Integer类的对象/实例的MAX_VALUE和MIN_VALUE。问题是MAX_VALUE和MIN_VALUE是常量,最后是Integer类。我该怎么办?
I need a data type that behaves completely like Integer with this difference that I want it to overflow and underflow to certain values. On the other words, I'd like to set the MAX_VALUE and MIN_VALUE of an object/instance of the Integer class. The problem is MAX_VALUE and MIN_VALUE are constant and Integer class in final. How should I approach?
推荐答案你必须创建自己的包装类:
You'll have to create your own wrapper class:
public class CustomInteger { public static final int MAX_VALUE = 5000; public static final int MIN_VALUE = -5000; private final int value; public CustomInteger(int value) { // TODO: Validation this.value = value; } // Add all the methods you want - e.g. integer operations etc // performing custom overflow/underflow on each operation }您需要决定是否需要为整个类型设置一对固定限制,或者每个实例是否可以具有不同的限制(以及将两个具有不同限制的值加在一起时的含义等)。
You need to decide whether you want one fixed pair of limits for the whole type, or whether each instance can have a different limit (and what that means when adding together two values with different limits etc).
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