相关疑难解决方法(0)

我有这个代码:

public static String SelectRandomFromTemplate(String template,int count) {
   String[] split = template.split("|");
   List<String> list=Arrays.asList(split);
   Random r = new Random();
   while( list.size() > count ) {
      list.remove(r.nextInt(list.size()));
   }
   return StringUtils.join(list, ", ");
}

我明白了:

06-03 15:05:29.614: ERROR/AndroidRuntime(7737): java.lang.UnsupportedOperationException
06-03 15:05:29.614: ERROR/AndroidRuntime(7737):     at java.util.AbstractList.remove(AbstractList.java:645)

这怎么会是正确的方法？Java.15

当我从列表中删除项目时,我得到不受支持的操作异常.

new AlertDialog.Builder(getActivity())
                        .setMessage(result.getString("Message"))
                        .setPositiveButton("OK", new DialogInterface.OnClickListener() {

                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                miPaymentModel.remove(index);
                            })
                        .show();

}

堆栈跟踪就在这里

01-11 16:42:37.610: E/AndroidRuntime(25930): FATAL EXCEPTION: main
01-11 16:42:37.610: E/AndroidRuntime(25930): java.lang.UnsupportedOperationException
01-11 16:42:37.610: E/AndroidRuntime(25930):    at java.util.AbstractList.remove(AbstractList.java:638)
01-11 16:42:37.610: E/AndroidRuntime(25930):    at com.paksoft.people.Fragment.MiPaymentFragment$DeleteCardAccount$1.onClick(MiPaymentFragment.java:395)
01-11 16:42:37.610: E/AndroidRuntime(25930):    at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:166)
01-11 16:42:37.610: E/AndroidRuntime(25930):    at android.os.Handler.dispatchMessage(Handler.java:99)
01-11 16:42:37.610: E/AndroidRuntime(25930):    at android.os.Looper.loop(Looper.java:137)
01-11 16:42:37.610: E/AndroidRuntime(25930):    at android.app.ActivityThread.main(ActivityThread.java:4499)
01-11 16:42:37.610: E/AndroidRuntime(25930):    at java.lang.reflect.Method.invokeNative(Native Method)
01-11 16:42:37.610: E/AndroidRuntime(25930):    at java.lang.reflect.Method.invoke(Method.java:511)
01-11 16:42:37.610: E/AndroidRuntime(25930):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:788)
01-11 16:42:37.610: E/AndroidRuntime(25930): …