配列のインデックスは新しい配列に格納されます

Question

配列の項目を並べ替えて古いインデックスを新しい配列に格納する必要があります。treemapとそのコレクションを試してみると、私の期待通りにコレクションに完全な出力が得られますが、アレイ。

float[] array = new float[10]; 
     array[0] = 11; 
     array[1] = 10; 
     array[2] = 3; 
     array[3] = 40; 
     array[4] = 5; 
     array[5] = 60; 
     array[6] = 4; 
     array[7] = 41; 
     array[8] = 110; 
     array[9] = 8;   

     Map<Float, Integer> map = new TreeMap<Float, Integer>(); 
     for (int i = 0; i < array.length; ++i) { 
      map.put(array[i], i); 
     } 
     Collection<Integer> indices = map.values(); 
     System.out.println("indices"+indices); 
     String s[] = (String[])indices.toArray(new String[0]); 
     for (int i = 0, n = s.length; i < n; i++) 
     { 
       System.out.println(s[i]); 
     } 

それは次のようにエラーを発生させる：

04-18 14:55:13.380: ERROR/AndroidRuntime(859): FATAL EXCEPTION: main 
04-18 14:55:13.380: ERROR/AndroidRuntime(859): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.jcord/com.jcord.Jcord_for_Con_lat_long_to_east_nothenActivity}: java.lang.ArrayStoreException 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663) 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  at android.app.ActivityThread.access$2300(ActivityThread.java:125) 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  at android.os.Handler.dispatchMessage(Handler.java:99) 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  at android.os.Looper.loop(Looper.java:123) 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  at android.app.ActivityThread.main(ActivityThread.java:4627) 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  at java.lang.reflect.Method.invokeNative(Native Method) 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  at java.lang.reflect.Method.invoke(Method.java:521) 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  at dalvik.system.NativeStart.main(Native Method) 
04-18 14:55:13.380: ERROR/AndroidRuntime(859): Caused by: java.lang.ArrayStoreException 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  at java.util.AbstractCollection.toArray(AbstractCollection.java:357) 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  at com.jcord.Jcord_for_Con_lat_long_to_east_nothenActivity.onCreate(Jcord_for_Con_lat_long_to_east_nothenActivity.java:50) 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) 
04-18 14:55:13.380: ERROR/AndroidRuntime(859):  ... 11 more 

Answer 1

完璧な...........

Integer s[] = (Integer[])indices.toArray(new Integer[0]);