First, let’s talk a little Java. Java is an Object Oriented programming language owned by Oracle. It is a compiled language, with its own rules and widely spread at educational and professional levels.

It is composed of three fundamental parts: JDK, JRE, and JVM. JDK is the Java development kit which contains the compiler and libraries needed to start creating applications with Java. The Java Runtime Environment (JRE) is the engine for running these applications. Last, the Java Virtual Machine (JVM) functions as an intermediate layer between the JRE and the operating system where Java applications run.

Java and Linux

Java is compatible with Linux, this means that it is possible to run, and build applications from your favorite distribution. The problem is that the version in the official repositories is based on OpenJDK. In short, this means that we will not be able to use it to create commercial applications, besides it is a community version with the advantages and disadvantages that it can present.

That’s why if you want to develop applications for third parties without having licensing problems, you should install Oracle Java.

Install Oracle Java thanks to a PPA

As I said before, installing Oracle Java is necessary if you are a developer. Fortunately, it is possible to do it in a quite simple way thanks to the Java Uprising PPA.

This repository automates the process of downloading, installing and configuring Oracle Java as a .deb package. Obviously, it downloads it from the Oracle website, configures it and allows us to set a default version.

For Ubuntu 18.04 and 18.10

First, you need to update the system.

:~$ sudo apt update && sudo apt upgrade

Once the installation is complete, the next step will be to add the java uprising repository.

:~$ sudo add-apt-repository ppa:linuxuprising/java

Finally, you can install Oracle Java. Then, you will see the license terms.

:~$ sudo apt install oracle-java12-installer

It’ll take a while, according to your internet connection.

Set Oracle Java 12 as default

This PPA brings with it a distributed tool in the form of a very useful package to set Oracle Java 12 as the default Java version of the system.

If you use Ubuntu the package oracle-java12-set-default has been installed as a recommended package in the installation of oracle-java12-installer package and it is not necessary to do anything else except verifying the installation.

:~$ java --version

On the other hand, if you want to install Java 12 but not the default one. So, you have to remove the oracle-java12-set-default package.

:~$ sudo apt remove oracle-java12-set-default

That’s it.

Conclusion

It is quite simple to install the proprietary version of Java, on Ubuntu and Debian, but if you are interested in learning about this programming language then you must do so.

Tell us your experience, do you use Java? Are you a Java developer? Tell us in the comments

Please spread this article through your social networks.

You can also read “5 very interesting plugins for netbeans“

The post How to install Oracle Java 12 on Ubuntu 18.04/18.10 and Debian 9? appeared first on Linux Windows and android Tutorials.

Recently we have talked about this new version of Ubuntu and is that cannot go unnoticed a release of the most used Linux distribution in the world in one way or another.

All Ubuntu launches stand out for their very refined user experience, but it is possible to improve it and adapt it to our needs. There are many things to do after installing Ubuntu 18.10 but they depend on each specific user.

5 things to do after installing Ubuntu 18.10

1. Upgrade the system

The first thing you have to do after installing Ubuntu 18.10 is upgrading the system.

From the moment a new version of Ubuntu is released until you install it, it is possible that security patches have been released for the distribution packages. In short, these are packages or updates that resolve security breaches that affect system stability.

First, open a Terminal and run:

:~$ sudo apt update && sudo apt upgrade

When you enter the password, the update of the repository cache will start. It will then install the published updates if any. This process should be done on a daily basis.

2.- Install codecs multimedia

For licensing reasons Ubuntu does not bring most of the multimedia codecs needed to play the most popular formats such as MP3, MKV, etc.. To do this, open a Terminal and run.

:~$ sudo apt install ubuntu-restricted-extras

This package also installs the official Microsoft sources such as Arial, Times New Roman.

also if you work with multimedia edition or just do not want to have problems decoding various files, you can install the libavcodec-extra package.

:~$ sudo apt install libavcodec-extra

And finally, you can get support for DVD playback with this command.

:~$ sudo apt install libdvd-pkg

If you play multimedia files, this is something you have to do after installing Ubuntu 18.10.

3. Enable minimize to Dock

The Ubuntu Dock is a very useful tool for opening applications quickly and easily. However, there is a basic feature that is not available by default and is to gain comfort, I’m talking about minimizing applications by clicking the Dock.

To resolve this situation, run the following instruction on a terminal.

:~$ gsettings set org.gnome.shell.extensions.dash-to-dock click-action 'minimize'

This will solve the problem.

4. Enable Google Drive integration

This is one of Ubuntu’s most enjoyable capabilities. We can enable the integration of our online accounts, from Ubuntu, in a very simple way. With this, you can have access to your files that you save in those accounts.

Some of the supported services are Google Drive, Dropbox, Microsoft or Facebook. As you can see, they are very popular services. In this case, I’ll enable the Google Drive account.

Go to Settings, Online Accounts and add Google Account. You will have to write your username and password.

When finished, you can view your Google Drive files from the Nautilus file manager.

5. Make a Backup

Sometimes due to routine work, we forget to make backups of our system. Ubuntu is a very safe system but it is not free of failures, so it is advisable to make backups from time to time.

Fortunately, Ubuntu has installed by default a very useful and simple tool to make them.

First, open it from the Menu.

You will see several options to make the backup. For example, in Folders to save, you can include the folders you want to back up. This way you can have control of what is backed up.

The tool also allows you to set where the backup in question will be saved.

As you can see, it is very simple and intuitive to use.

Conclusion

There are many things to do after installing Ubuntu 18.10 but each of them depends on the user who uses it. In this article, I showed you 5 things everyone should do after installing it.

Tell us about yourself, do you use Ubuntu? How did you do with Ubuntu 18.10? Do you have another tweak that you can tell us?

Please spread this article through your social networks.

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Recently the BETA of this new version had been published which served as a preview for what was to come. I had recently spoken about the BETA version. Ubuntu 18.10 is a short time support version that acquires relevance because it is the first version after 18.04 that is LTS.

Do I have to upgrade to Ubuntu 18.10

This new version of Ubuntu comes with some very interesting new features that are not revolutionary but to improve the distribution. However, it is not an LTS version, so it will only receive security updates until mid-2019.

In short, if you need a stable system and the peace of mind that comes with it, then stay with Ubuntu 18.04. However, if you’re an enthusiast and you’re aware that its support is short-term, you can try it.

It is the moment of Snap

Ubuntu is behind the development and support of Snap, a new technology for packaging applications for Linux. In this new version, they take even more validity with the improvement of the time of boot the applications Snap.

Another point is that the Snap app store has 4100 packages built by at least 1700 developers. Official desktop snaps from Spotify, Plex and Skype are very popular.

There is also good news for users of server applications. Because there are snap packages aimed at them like Google Cloud SDK, AWS CLI, and Azure CLI.

What is new?

A new GTK and icons Theme

Ubuntu 18.10 brings a number of new features that will make the user experience more enjoyable.

First of all, a new theme called Yaru is finally released, which is much better than the previous one. In addition, it also has a new theme of icons quite elegant.

Believe me, the new theme is a great improvement.

Linux 4.18 ideal for gaming

In this new version of Ubuntu, you should be able to run your games more efficiently. The Linux 4.18 kernel together with updates in Mesa and X.org significantly improve game performance. Graphics support expands to AMD VegaM in the latest Intel Kabylake-G CPUs.

Optimized for multi-cloud computing

In this new version, there are extensive improvements in the field of cloud computing. Ubuntu Server 18.10 images are available on all major public clouds, including minimal images popular for container workloads with a small footprint and fast boot time.

GNOME 3.30

On a graphical level, the main novelty is the incorporation of GNOME 3.30, which introduces a series of new features that improve the user experience. For example, there is an improvement in the performance of the desktop. In addition, with GNOME 3.30 it is now easier than ever to control screen sharing and remote desktop sessions.

Faster installation and startup

Ubuntu 18.10 Cosmic Cuttlefish uses compression algorithms such as LZ4 and ztsd, which support 10% faster startup.

And of course, Firefox, LibreOffice and Chromium have been updated to their latest stable version.

Download Ubuntu 18.10

Finally, if you are enthusiastic about this new version of Ubuntu and want to try it, you can download the corresponding ISO images and start the installation.

Being a short support version you can use VirtualBox for it and see if you like it.

Tell us about yourself, will you use Ubuntu 18.10? Do you use it? what will you do with Ubuntu? Let us know your impressions in the comments.

The post Ubuntu 18.10 Cosmic Cuttlefish available appeared first on Linux Windows and android Tutorials.

Flat-Remix is a pretty simple icon theme inspired by material design. It can be installed on all Linux distributions that use GNOME as a desktop environment. It is also released under the GPLv3 license, which guarantees that you can modify and reuse it.

In addition, the theme is available in several versions (Main, Dark, Light) as well as an icon theme and for GNOME Shell.

As can been noted, the last stable version of this complete theme is 1.32 which was released a few days ago. In this new version, some bugs have been fixed and some icons have been updated.

Install Flat-Remix Icon set on any Linux Distribution

If you want to install Flat-Remix in any Linux distribution, I have the good news that is quite simple.

In the first place, you have to install git to clone the Git repository of the project. Open a Terminal, and then, type:

:~$ sudo apt install git

Now you can clone the first repository (icon set), to do it, run:

:~$ git clone https://github.com/daniruiz/flat-remix

Second, clone the other repository (GTK theme).

:~$ git clone https://github.com/daniruiz/flat-remix-gtk

The only thing left to do is to create the local folder where the theme will be.

:~$ mkdir -p ~/.icons && mkdir -p ~/.themes

Then, copy the contents of the cloned folder into the new one.

:~$ cp -r flat-remix/Flat-Remix* ~/.icons/ && cp -r flat-remix-gtk/Flat-Remix-GTK* ~/.themes/

Finally, open gnome-tweaks-tool and in the appearance section, choose the new theme.

Here’s part of the results.

Conclusion

Linux is destined for its capacity of customization and it is true that more and more the Linux distributions improve in visual aspects. However, excellent themes can always be found to further improve the appearance of the system.

I like to customize my work environment, so soon I’ll bring you another theme to install.

We want to hear from you, do you like flat-remix? did you know it? how did you like it?

Please spread this article through your social networks.

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Android Studio is the official IDE for the development of applications for the Android operating system. Android is present in most cell phones in the world. That’s why developers create their applications for Android, because they know it will be used by millions.

With this in mind, I’ll show you how to install Android Studio on Ubuntu 18.04 and Ubuntu 18.10.

0. Prerequisites

The process is simple, however, it is good to keep in mind that it requires some handling of the terminal and its terminology.

On the other hand, you need a user who has enabled the use of sudo for terminal commands.

Finally you need a computer with Ubuntu 18.04 or Ubuntu 18.10 (BETA) installed. Obvious.

1. Installing Java from Oracle

Android Studio requires java for its operation and therefore I recommend that you install the official version of Java 8. Java 8 is the version that best supports Android Studio and also thanks to Webupd8 ppa installation becomes very simple.

First, open a terminal and run:

:~$ sudo add-apt-repository ppa:webupd8team/java

Next:

:~$ sudo apt-get install oracle-java8-installer

During the process, you will be asked to accept Oracle’s license terms.

And to define this version of Java as the main one, install oracle-java8-set-default. Run:

:~$ sudo apt install oracle-java8-set-default

In this case it was installed by default.

Then, check the installed Java version.

As you can see, everything is going OK.

2. Install Android Studio

The easiest way to install Android Studio on Ubuntu is through a PPA. With this we make sure to install the latest version available and a simple way.

Open a terminal and run:

:~$ sudo apt-add-repository ppa:maarten-fonville/android-studio

Now, you can install it.

:~$ sudo apt install android-studio

The time it takes depends on your internet speed.

3. Complete the installation

At the end it is necessary to run the wizard to complete the installation. Run:

:~$ /opt/android-studio/bin/studio.sh

Next, you have to specify the type of installation.

In this screen you will be able to choose the theme that android studio will use.

Finally the download of all components will start.

And that’s it.

Conclusion

As you can see, the installation is simple and will depend on your internet connection to ensure that it is done in the shortest time possible.

Tell us, are you an Android developer? how is your experience with Android Studio?

Please spread this article through your social networks.

The post How to install Android Studio 3.2 in Ubuntu 18.04/18.10? appeared first on Linux Windows and android Tutorials.

Ubuntu 18.10 under the name Cosmic Cuttlefish is the new version of this great Linux distribution, it comes loaded with new features and with the impulse of being the first version after an LTS release.

This version of Ubuntu comes with Linux Kernel 4.17 which adds support for the Andes NDS32 RISC architecture and it also supports for the Nvidia Tegra Xavier processor. But they are not the only improvements thanks to the Kernel, there is also better battery management and HDMI audio and sound compatibility for AMD graphics cards.

This is some features:

GNOME 3.30

The default desktop environment for Ubuntu 18.10 Cosmic Cuttlefish will be GNOME 3.30, with all its new features. These include improved performance and as they say in the release notes, “Many performance improvements have been added to GNOME 3.30. The entire desktop now uses fewer resources, which means you can run more applications at once without encountering performance problems”.

However, it will retain an earlier version of Nautilus.

We finally have a new look

The appearance has always been a problem in Ubuntu, apart from the tastes of each person, it is true that more and more it was obligatory to change the theme and icons just finish the installation. However, for this new version, the Communitheme called Yaru theme will be activated by default. And this is something all users of the distribution will be grateful for.

10% faster start-up for this new version

Thanks to the new compression algorithms LZ4 and ztsd, the developers say that, to avoid bottle necks in the system startup process, the system will start faster, around 10%.

More from Snap for you

This new version of Ubuntu, deepens the bet that makes Canonical with snap technology. This is why the boot time of pre-installed snap applications has been optimized. In addition, there are a large number of applications available from the software center.

More features:

There are other more or less important characteristics, for example:

• Many basic programs such as Firefox (61), Shotwell (0.30) and LibreOffice(6.1.1) are updated.
• Support for multiple monitors has been improved.
• The Snap packages have been improved to be better used by this new version.
• The installation process should take less time in this beta.

Downloading Ubuntu 18.10 beta

I remind you that this version is still in beta phase which implies that you should expect errors, however, if you are enthusiastic and want to try it, you can download it from here.

Conclusion

This version is of short support, which makes it a test bench for Canonical and its novelties. In short, its installation in production computers is not advisable and its use is limited to Lin enthusiasts.

Please spread this article through your social networks.

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