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In Java, a utility class is a class that defines a set of methods that perform common functions. This post shows the most frequently used Java utility classes and their most commonly used methods. Both the class list and their method list are ordered by popularity. The data is based on randomly selected 50,000 open source Java projects from GitHub. Hopefully, you can get a basic idea of what are already provided and popular by browsing the list so that you know you don't need to program it by yourself. The names of the methods normally indicate their functions. You may also click on the methods to see how they are used in open source projects. >>   Click here for more details with example

Ubuntu is a free operating system or a Linux distribution ("distro") which currently receives the second highest hits after Linux Mint at DistroWatch. The recent versions of Ubuntu have used Unity as a default user interface for the GNOME-3 desktop environment. If you have installed a new version of Ubuntu operating system with the Unity user interface on your PC, you might find these tips and tricks useful for working with the system. Looking for a desktop interface with a start menu that looks closer to the traditional Windows system? Then give Linux Mint a try and check out Tips and Tricks for Linux Mint 17 Cinnamon Edition or MATE Edition. Note: The tips and tricks included in this article work well with Ubuntu 14.04 (LTS) to 15.04 >>   Click here to view list of tips and tricks