Mind mapping software for Linux and Android

I needed to organize my thoughts on some subjects.

Unfortunately, a paper and pencil could not take me very far in getting them organized due to the complexity of the subjects.

I managed to solve the conundrum using Mind Mapping software. Funny, I never realised this existed for several years now on Linux and did . . . → Read More: Mind mapping software for Linux and Android

GridLayout struggle when it has excess rows and how to overcome

In my Java code, I am using GridLayout (line shown in red) in code below:

frame = new JFrame(“Contacts Details”); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); mainPanel = new JPanel(); buttonPanel = new JPanel(); mainPanel.setLayout(new GridLayout(9, 3)); buttonPanel.setLayout(new GridLayout(1, 3));

The result was this:

Name [                        ] (Text Box for name) City [                        ] (Text Box for City) Cell . . . → Read More: GridLayout struggle when it has excess rows and how to overcome

How to create image map using LibreOffice Impress for use on a web page

My objective was to create an image map of a slide I created using LibreOffice Impress. See this link for the result. Here is how I went about it:

Create a presentation or flow diagram with the shapes you want, in LibreOffice Impress. Save the presentation as an ODP file, which is the default LibreOffice . . . → Read More: How to create image map using LibreOffice Impress for use on a web page

How to add GnuPG / GPG key ID to the Evolution email client in Linux and use it

We saw how to create a GPG, GnuPG or PGP key pair in earlier posts. Now we need to tell Evolution that we have a PGP key pair that can be used to sign email messages and also encrypt them.

To sign, all you need is the private key. To encrypt, you will need the . . . → Read More: How to add GnuPG / GPG key ID to the Evolution email client in Linux and use it

How to monitor battery, network, CPU in Windows

Linux has an application called gkrellm. It displays battery, network, CPU usage, system temperature, disk usage etc on the desktop. Gkrellm is configurable and can run on system startup too. Gkrellm comes with most distributions. There is a Windows version too, but it is outdated as of now.

A good substitute that exactly does what . . . → Read More: How to monitor battery, network, CPU in Windows

Delete all rows from a Java JTable with a custom TableModel

I want to clear all rows in a custom TableModel. Unfortunately, a custom TableModel in Java does not allow use of most efficient of row clearing methods, which only applies to a DefaultTableModel like that shown below: myTableModel.getDataVector().removeAllElements(); myTableModel.fireTableDataChanged(); To do an all clear like the above, for a custom TableModel, you need to reset . . . → Read More: Delete all rows from a Java JTable with a custom TableModel

How to install Dropbox on Linux desktop

Setup a free Dropbox account for yourself at https://www.dropbox.com/login

Download the deb file for your distribution from https://www.dropbox.com/install?os=lnx and install, if you use Ubuntu, using: $ sudo dpkg -i dropbox* <enter>

Start it from Applications Menu->Internet->Dropbox. Next up, will be a screen as follows.

Figure 1: Dropbox daemon Start

Click on the Start button . . . → Read More: How to install Dropbox on Linux desktop

How to import mbox file into evolution

Those who want to import their email from other email clients and platforms like Microsoft Outlook or Thunderbird or even older Evolution clients into Evolution on Linux, need to export their emails into the mbox format. Evolution can then import those mbox files. Below are the steps to do this in evolution:

Click File -> . . . → Read More: How to import mbox file into evolution

How to save or export evolution emails as an mbox file

This is for those who want to know how to export emails from Evolution. Emails can be exported from Evolution using a file called mbox. It is a universal email files format recognized by several email clients. Below are the steps to do this.

Select all the emails in the folder first. You can only . . . → Read More: How to save or export evolution emails as an mbox file

Database Design Utilities in Linux

If you are into designing databases, you can use the following open source database design software. I had a problem wherein it became quite difficult to manage a database with lots of tables and relationships, and these kind of software made database design much simpler.

easyDesigner http://sourceforge.net/projects/easydesigner/ project Mogwai http://mogwai.sourceforge.net/index.html http://mogwai.sourceforge.net/erdesignerng.html DBDesigner4 http://www.fabforce.net/dbdesigner4/ Database Deployment . . . → Read More: Database Design Utilities in Linux

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