用于对特定对象数组进行排序的 Java Comparator 类

Question

我有一个 float 组和一个字符串数组。每个浮点值与特定字符串匹配。我想使用以下方式对保留自己的字符串的 float 组进行排序:

public static <T> void sort(T[] a,Comparator<? super T> c)

代码如下:

public class ResultVoiceObject
{

     private  String frase;
     private float ranking;
     public ResultVoiceObject(String f, float r) 
       {
        this.frase=f;
        this.ranking= r;
       }  
     }
     public class VoiceRecognitionDemo extends Activity
     {

       // Populate the wordsList with the String values the recognition engine thought it heard
        ArrayList<String> matches = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);          
        //il Ranking
        float[] score= data.getFloatArrayExtra(RecognizerIntent.EXTRA_CONFIDENCE_SCORES);

        ResultVoiceObject[] risultati= new ResultVoiceObject[score.length];
        for (i=0; i<risultati.length;i++)
        {       
            risultati[i]=new ResultVoiceObject(matches.get(i), score[i]);       
        }          
        ResultVoiceObject[] risultatiDaOrdinare= risultati;  // risultati contais ResultVoiceObject elements
                    /*sorting*/
        }

如何排序并保留自己的字符串？

非常感谢。

Answer 1

ResultVoiceObject[] objects = ...
Arrays.sort(objects, new Comparator<ResultVoiceObject>() {

    @Override
    public int compare(ResultVoiceObject arg0, ResultVoiceObject arg1) {
        return Float.compare(arg0.getRanking(), arg1.getRanking());
    }

});