如何将整数放入Java范围内？

Question

虽然我确信这个答案很简单，但我不确定是否有人问我这个任务。这是我写的完整代码（所以才一回！），以及被赋予了指令：在粘贴

package code; 

/** 
* This class contains a variety of methods that will be used throughout the Ratings and Reviews 
* project. 
*/ 

public class Utilities{ 

/** 
* Computes the average of two ratings 
* 
* @param rating0 An integer rating in the range of 1-5 inclusive 
* @param rating1 An integer rating in the range of 1-5 inclusive 
* @return the average of rating0 and rating1 as a double 
*/ 
public double averageRating(int rating0, int rating1){ 

    return ((rating0 + rating1)/2); // Don't forget to replace this return statement with your own 
} 

对不起坏结构。我认为我的回报适合正在进行的工作，前提是评级可能只是任何事情。不过，我知道它只能在1-5之间，那么如何指定呢？

Answer 1

如果范围被侵犯，扔InvalidArgumentException怎么样？

例如

public double averageRating(int rating0, int rating1){ 
    if (rating0 < 1 || rating0 > 5 || rating1 < 1 || rating1 > 5) { 
     throw new InvalidArgumentException("Rating out of range"); 
    } 

    return ((rating0 + rating1)/2.0); // Don't forget to replace this return statement with your own 
}