Concept Elements

DITA concept topics answer "What is..." questions. Use the concept topic to introduce the background or overview information for tasks or reference topics.

From the DITA specification: "Use the concept topic to introduce the background or overview information for tasks or reference topics. The concept topic has the restriction that following a section or example, only other sections or examples are permitted as content. For more details on when to use concept and other information types, please refer to the DITA architectural specification."

oxy_concat ( str_1 , str_2 )

If this concept would define a Java interface, you could also use programming domain elements like codeblock.

Here is a code snippet example:

public interface ButtonProvider {

   Button getRoundedButton(String text);

   Button getSmallButton(String text, int size);

}