Conventions used

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

Code in text: 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: “After submitting the tasks, we use task1.get() and task2.get() to wait for both tasks to complete. The get() method blocks until the task is finished and returns the result.”

A block of code is set as follows:

import java.util.stream.IntStream;
public class ParallelKitchen {
  public static void main(String[] args) {
    IntStream.range(0, 10).parallel().forEach(i -> {
        System.out.println(“Cooking dish #” + i + “ in parallel...”);
        // Simulate task
        try {
            Thread.sleep(600);
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
        }
    });
  }
}

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

aws cloudformation describe-stacks --stack-name <your-stack-name>

Bold: Indicates a new term, an important word, or words that you see onscreen. For instance, words in menus or dialog boxes appear in bold. Here is an example: “Authentication: Verify user credentials and issue secure tokens (e.g., JWTs) for access.”

Tips or important notes

Appear like this.