Java method for determining if android device is a tablet

IsDeviceTable.java

    public static boolean isDeviceTablet(String deviceId, int screenHeight, int screenWidth) {
            try {
                Process getDensity;
                if (deviceId != null) {
                    getDensity = new ProcessBuilder("adb", "-s", deviceId, "shell", "getprop", "ro.sf.lcd_density").start();
                } else {
                    getDensity = new ProcessBuilder("adb", "shell", "getprop", "ro.sf.lcd_density").start();
                }
                getDensity.waitFor();
                int deviceDpi = Integer.parseInt(convertStreamToString(getDensity.getInputStream()).replaceAll("[^0-9]", ""));
                float minDp = Math.min(screenHeight, screenWidth) / (deviceDpi / 160);
                return minDp >= 600;
            } catch (Exception e) {
                return false;
            }
    }

public static String convertStreamToString(InputStream stream) throws Exception {
        BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
        StringBuilder stringBuilder = new StringBuilder();
        String line;
        while ((line = reader.readLine()) != null) {
            stringBuilder.append(line).append("\n");
        }
        line = stringBuilder.toString();
        reader.close();
        stream.close();
        return line;
    }