java - double 值排序输出错误数据

Question

我对大学类(class)有一些疑问。我也对作业的最后部分感到沮丧，我认为容易的部分很快就变成了最难的部分。系统要求我按距离对 .cvs 文件中的值进行排序(例如 17.0123874627346,0.123761947 等值)

这是我的代码:

public void sortDistance() {
    System.out.println("before distance sort");
    for (int k = 0; k < ntracks; k++) {
        System.out.println(tracks[k].getDistance());
    }
    for (int i = 0; i < ntracks; i++) {
        //find the index of the minimum position
        int index = i;
        //looping through array of distances
        for (int j = i + 1; j < ntracks; j++) {
            if  (tracks[index].getDistance() < tracks[j].getDistance())             
            {
                //position j is new mimum index
                index = j;
            }
        }
        //swap the two values around so smallest becomes track index
        Track smallerTrack  = tracks[index]; 
        tracks[index] = tracks[i]; 
        tracks[i] = smallerTrack;
    }
    System.out.println(" after distnace sort");
    for (int k = 0; k < ntracks; k++) {
        System.out.println(tracks[k].getDistance());
    }
}

Answer 1

float s[]={1,3,2}；Arrays.sort(s);