You can add your own folder to the Finder Sidebar by selecting the Folder in the Finder and pressing ^⌘T or you can use the mouse and drag the folder to the Sidebar. This is useful for the folder that you have to access very often.
This is a very common task in app development - get the current date and time value. In Android you can use 2 simple methods to achieve this:Method 1Calendar c = Calendar.getInstance();
Date d = c.getTime();
Time now = new Time();