is android device tablet?

IsTablet.java

public boolean isTablet() { 
    try { 
        // Compute screen size 
        DisplayMetrics dm = context.getResources().getDisplayMetrics(); 
        float screenWidth  = dm.widthPixels / dm.xdpi; 
        float screenHeight = dm.heightPixels / dm.ydpi; 
        double size = Math.sqrt(Math.pow(screenWidth, 2) + 
                                Math.pow(screenHeight, 2)); 

        // Tablet devices should have a screen size greater than 6 inches 
        return size >= 6; 
    } catch(Throwable t) { 
        Log.error(TAG_LOG, "Failed to compute screen size", t); 
        return false; 
}