Cannot convert String to Integer in Android Studio / Java

Question

I have a function that receives a number (milliseconds to be precise) via Bluetooth.

byte[] encodedBytes = new byte[readBufferPosition];
System.arraycopy(readBuffer, 0, encodedBytes, 0, encodedBytes.length);
final String data = new String(encodedBytes, "UTF-8");
readBufferPosition = 0;

started = "";
int myInt;
if (data != "") {
  try{
    myInt = new Integer(data);
    long seconds = TimeUnit.MILLISECONDS.toSeconds(myInt);
  }catch(NumberFormatException ex){
    System.err.println("NumberFormatException "+ ex.getMessage());
  }
  ...
} else {
  ...
}

The above try throws:

NumberFormatException Invalid int: "8250

I think the data received contains more then just the milliseconds, but how can I find that out, when I do

myLabel.setText(data);

it shows me: 8250

Any ideas?

try new Integer(data.trim()); can be a \n

Luis Felipe Kaufmann da silva
– Luis Felipe Kaufmann da silva

2015-05-23 15:43:09 +00:00
Commented May 23, 2015 at 15:43 — Luis Felipe Kaufmann da silva
– Luis Felipe Kaufmann da silva, Commented May 23, 2015 at 15:43
try myInt = Integer.valueOf(data);

mrahmat
– mrahmat

2015-05-23 15:45:21 +00:00
Commented May 23, 2015 at 15:45 — mrahmat
– mrahmat, Commented May 23, 2015 at 15:45
@ Luis Felipe Kaufmann da silva perfect, that was it...

PrimuS
– PrimuS

2015-05-23 15:47:44 +00:00
Commented May 23, 2015 at 15:47 — PrimuS
– PrimuS, Commented May 23, 2015 at 15:47

hamena314 · Accepted Answer · 2015-05-23 15:44:25Z

1

Your data is a String. When you try to form an Integer later, this fails. You need to use this: myInt = new Integer(Integer.parseInt(data));

answered May 23, 2015 at 15:44

hamena314

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