可能的有损从double转换为int [英] Possible lossy conversion from double to int

问题描述

为什么我得到可能的有损从double转换为int 错误，如何修复？

Why am I getting the Possible lossy conversion from double to int error and how can I fix it?

public class BinSearch {
    public static void main(String [] args)
    {
        double set[] = {-3,10,5,24,45.3,10.5};
        double l = set.length;
        double i, j, first, temp;
        System.out.print("Before it can be searched, this set of numbers must be sorted: ");
        for (i = l-1; i>0; i--)
        {
            first=0;
            for(j=1; j<=i; j++)
            {
                if(set[j] < set[first]) // location of error according to compiler
                {
                    first = j;
                }
                temp = set[first];
                set[first] = set[i];
                set[i] = temp;
            }
        }
    } 
}

As您可以看到，在声明变量时，已经尝试将 int 替换为顶部的 double ，但不会

As you can see, I've already tried replacing int with double near the top when declaring variables but it doesn't seem to do the job.

推荐答案

将所有用作数组索引的变量从double更改为int（即变量 j ， first ， i ）。数组索引为整数。

Change all your variables used as array indices from double to int (i.e. the variables j, first, i). Array indices are integer.

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