我通过蓝牙实时接收30000个字符串,大约每秒1000个字符串。我正在将数据解析为double并尝试将这30000个数据点存储到多维array[30000][1]
中。但是,当我运行Android应用程序时,由于ArrayIndexOutofBoundException
,它会在几点之后崩溃。
我确实意识到这可以在一个奇异的数组中完成,但我最终会增加数组的宽度。
存储的数组大小= [30000][1]
转换的数组大小= [1]
BluetoothChat
case MESSAGE_READ:
for (int a = 0; a < 30000; a++) {
byte[] readBuf = (byte[]) msg.obj;
try {
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];
}
} catch (NumberFormatException e) {
System.err.println("NumberFormatException: " + e.getMessage());
}
}
finalValue = new HjorthClass(stored);
if (finalValue.returnSum() == true) {
seizureResult.setText("A Seizure has been detected");
}
break;
logcat的;
04-04 22:44:17.406: E/AndroidRuntime(14619): FATAL EXCEPTION: main
04-04 22:44:17.406: E/AndroidRuntime(14619): java.lang.ArrayIndexOutOfBoundsException
04-04 22:44:17.406: E/AndroidRuntime(14619): at com.example.android.BluetoothChat.BluetoothChat$2.handleMessage(BluetoothChat.java:311)
04-04 22:44:17.406: E/AndroidRuntime(14619): at android.os.Handler.dispatchMessage(Handler.java:99)
04-04 22:44:17.406: E/AndroidRuntime(14619): at android.os.Looper.loop(Looper.java:130)
04-04 22:44:17.406: E/AndroidRuntime(14619): at android.app.ActivityThread.main(ActivityThread.java:3683)
04-04 22:44:17.406: E/AndroidRuntime(14619): at java.lang.reflect.Method.invokeNative(Native Method)
04-04 22:44:17.406: E/AndroidRuntime(14619): at java.lang.reflect.Method.invoke(Method.java:507)
04-04 22:44:17.406: E/AndroidRuntime(14619): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
04-04 22:44:17.406: E/AndroidRuntime(14619): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
04-04 22:44:17.406: E/AndroidRuntime(14619): at dalvik.system.NativeStart.main(Native Method)
答案 0 :(得分:0)
首先声明一个大小为1的双数组。
double[] convert = new double[1];
然后你尝试调用该数组 转换[a] ,其中 a 可以是0到2999 ,只要 a&gt; 0 它超出范围。
stored[a][j]= convert[a]; // a > 0 ? if yes then out of bounds
有你的错误。我的猜测应该是:
stored[a][j]= convert[j];