Java的比较类特定对象数组排序 [英] Java Comparator class to sort particular object array

问题描述

我有一个int数组和字符串数组。 与特定字符串每个浮点值一致。 我想float数组保持使用自己的字符串进行排序：

 公共静态＆LT; T＆GT;无效排序（T []一，比较和LT ;?超级T＆GT; C）
 

下面是code：

 公共类ResultVoiceObject
{

     私人字符串frase;
     私人持股量排名;
     公共ResultVoiceObject（字符串型F，浮动R）
       {
        this.frase = F;
        this.ranking = R;
       }
     }
     公共类VoiceRecognitionDemo扩展活动
     {

       //填充的字符串的wordsList值识别引擎认为它闻
        ArrayList的＆LT;字符串＆GT;比赛= data.getStringArrayListExtra（RecognizerIntent.EXTRA_RESULTS）;
        //金正日排名
        浮动[]得分= data.getFloatArrayExtra（RecognizerIntent.EXTRA_CONFIDENCE_SCORES）;

        ResultVoiceObject [] risultati =新ResultVoiceObject [score.length]
        对于（i = 0; I＆LT; risultati.length;我++）
        {
            risultati [I] =新ResultVoiceObject（matches.get（i）中，分数[I]）;
        }
        ResultVoiceObject [] risultatiDaOrdinare = risultati; // risultati contais ResultVoiceObject元素
                    / *排序* /
        }
 

我如何排序的排名和保持自己的字符串？

多谢了。

解决方案

  ResultVoiceObject []对象= ...
Arrays.sort（对象，新的比较＆LT; ResultVoiceObject＆GT;（）{

    @覆盖
    公众诠释比较（ResultVoiceObject为arg0，ResultVoiceObject ARG1）{
        返回Float.compare（arg0.getRanking（），arg1.getRanking（））;
    }

}）;
 

I have a float array and a String array. each float value match with a specific String. I would like to sort the float array keeping the own string using :

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

Here is the code:

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*/
        }

How can I sort by ranking and keeping the own String?

Thanks a lot.

解决方案

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

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

});

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