StringIndexOutOfBoundsException

Hello there.

I am having a problem with my code..
It is force closing when i run it.
With the error: StringIndexOutOfBoundsException

My code:

public class MemoryInfo extends Activity {

private TextView memoryInfo;

/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.info);
		memoryInfo = (TextView) findViewById(R.id.memoryinfo);
		// memoryInfo.setText(getrawMemoryInfo());
		getrawMemoryInfo();
		memoryInfo.setText("" + output);
	}

public String result = new String();

private String getrawMemoryInfo() {
		ProcessBuilder cmd;

try {
			String[] args = { "/system/bin/cat", "/proc/meminfo" };
			cmd = new ProcessBuilder(args);

Process process = cmd.start();
			InputStream in = process.getInputStream();
			byte[] re = new byte[1024];
			while (in.read(re) != -1) {
				System.out.println(new String(re));
				result = result + new String(re);
			}
			in.close();
		} catch (IOException ex) {
			ex.printStackTrace();
		}
		return result;
	}

int n = result.indexOf('\n');
	String a = result.substring(0, n);
	String b = result.substring(n + 1);

String output = "" + a + b;

}

- Frede1012

You didn't say in which line this happens, so I'm guessing either line 42 or 43. What is the value of "n"? If it's -1 or equal to the length of "result" you're in trouble.

Ulf Dittmer wrote:You didn't say in which line this happens, so I'm guessing either line 42 or 43. What is the value of "n"? If it's -1 or equal to the length of "result" you're in trouble.

I dont really know, i got help on an irc and did this.
But it is still not working.
Im trying to get the first two lines of the memoryinfo thingy.

I'm just noticing that lines 41 to 45 are not part of any method; it looks like they need to go between lines 12 and 13.

Okay that fixes the error.
But it still shows the whole meminfo instead of only output string?

Nevermind!
Thanks for the help!

/solved