August 2018
Intermediate to advanced
524 pages
14h 45m
English
Content preview from Java Projects - Second Edition
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License
The license is an important question as not all free software is free for all uses. Some of the licenses allow free use for hobby projects and education but require you to purchase the software for professional, profit-oriented use.
The most widely used licenses and their explanations (and the whole text of the license) are available on the web page of the Open Source Initiative (https://opensource.org/licenses). It lists nine different licenses, and to make the situation a bit more complex, these licenses have versions.
One of the oldest licenses is the General Public License (GPL) standing for GNU. This license contains the following sentences:
"For example, if you distribute copies of such a program, whether gratis or for a fee, ...