There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "This is the task of the merge() function, which is found at the end of the pseudocode shown in the preceding section."

A block of code is set as follows:

quickSort(array, start, end)
if(start < end)
p = partition(array, start, end)
quickSort(array, start, p - 1)
quickSort(array, p + 1, end)

Any command-line input or output is written as follows:

gradlew test --tests com.packt.datastructuresandalg.lesson2.activity.selectionsort*

Bold: Indicates a new term, an important word, or words that you see on screen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Select Dynamic Web Project and click Next to open the Dynamic Web Project wizard."

Activity: These are scenario-based activities that will let you practically apply what you've learned over the course of a complete section. They are typically in the context of a real-world problem or situation.