howto

Read and write to spreadsheet in Java

I was writing an algorithm that would run and produce some results. These results should have been stored some place and retrieved during next program run. New values would then be added to the resulting list. The program needed to remember all the results from all run.

Replace string in XML file with Python

In this example we will show how to read XML and CSV files with Python, and perform search and replace operations. The result will be written into a new file with the same filename, but with “_new” appended to the filename.

Integrating LibreOffice into C++

At our math website we publish printable PDF worksheets for school children. We’ve just started publishing crosswords, while relatively easy to create, they require much work to make them into tasks.

How to sell well on Fiverr

As of today I’m a level 2 seller on Fiverr. In this article I would like to share some tips and tricks on how to sell well on Fiverr, how to deal with difficult customers and orders that you can’t do right.

How to sort a Set in Java example

There are different versions of Java available with different ways to sort collections of objects. We will be showing examples of how to sort a set of objects or strings alphabetically in Java 8, Java 7 and older versions using comparator.