我的目標是採取一系列流媒體的數字,並把它變成一個多維數組。我意識到這可以在非多維數組中完成,但我的目標是最終擴展列的數量。但是,我得到一個錯誤NumberFormatException,我相信它來自parseDouble。有人能解釋我的錯誤嗎?NumberFormatException的()
請看到logcat的錯誤下面的代碼。謝謝。
添加了log.d( 「」,readMessage,NULL);
這是我log.d.的段空白點是空的嗎?
04-04 21:19:33.196: D/(13272): 0.03
04-04 21:19:33.196: D/(13272): 0.
04-04 21:19:33.196: D/(13272):
04-04 21:19:33.196: D/(13272): 0.03
04-04 21:19:33.196: D/(13272): 0.
04-04 21:19:33.196: D/(13272):
04-04 21:19:33.196: D/(13272): 0.03
04-04 21:19:33.196: D/(13272): 0.
04-04 21:19:33.196: D/(13272):
case MESSAGE_READ:
for(int a= 0; a <30000; a++)
{
byte[] readBuf = (byte[]) msg.obj;
String readMessage = new String(readBuf, 0, msg.arg1);
mConversationArrayAdapter.add("Voltage: "+ readMessage);
double[] convert = new double[1];
for(int z=0; z <1;z++)
{
convert[z]= Double.parseDouble(readMessage);
}
for(int j=0; j<1;j++)
{
stored[a][j]= convert[a];
}
}
break;
logcat的
04-02 21:42:42.516: E/AndroidRuntime(10430): FATAL EXCEPTION: main
04-02 21:42:42.516: E/AndroidRuntime(10430): java.lang.NumberFormatException:
04-02 21:42:42.516: E/AndroidRuntime(10430): at org.apache.harmony.luni.util.FloatingPointParser.parseDouble(FloatingPointParser.java:267)
04-02 21:42:42.516: E/AndroidRuntime(10430): at java.lang.Double.parseDouble(Double.java:318)
04-02 21:42:42.516: E/AndroidRuntime(10430): at com.example.android.BluetoothChat.BluetoothChat$2.handleMessage(BluetoothChat.java:305)
04-02 21:42:42.516: E/AndroidRuntime(10430): at android.os.Handler.dispatchMessage(Handler.java:99)
04-02 21:42:42.516: E/AndroidRuntime(10430): at android.os.Looper.loop(Looper.java:130)
04-02 21:42:42.516: E/AndroidRuntime(10430): at android.app.ActivityThread.main(ActivityThread.java:3683)
04-02 21:42:42.516: E/AndroidRuntime(10430): at java.lang.reflect.Method.invokeNative(Native Method)
04-02 21:42:42.516: E/AndroidRuntime(10430): at java.lang.reflect.Method.invoke(Method.java:507)
04-02 21:42:42.516: E/AndroidRuntime(10430): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
04-02 21:42:42.516: E/AndroidRuntime(10430): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
04-02 21:42:42.516: E/AndroidRuntime(10430): at dalvik.system.NativeStart.main(Native Method)
之前,這是因爲['readMessage'不是一個有效的雙(http://docs.oracle.com/javase/7/docs/ API/JAVA/LANG/Double.html#parseDouble(java.lang.String中))......所以你必須要麼告訴我們什麼'readMessage'是當它發生故障,或者增加一些臨時的日誌輸出進行監控。這不是真的與數組有關。 –