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: “ACC_PUBLIC (0x0001) indicates that the class is public and can be accessed from other packages.”
A block of code is set as follows:
public final class AccessSample { private int value;
public AccessSample(int value) {
this.value = value;
}
When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:
public class ConstantPoolSample { private String message = "Hello, Java!"; // String literal stored
// in the constant pool
public static void main(String[] args) {
ConstantPoolSample sample = new ConstantPoolSample();
System.out.println(sample.message); // Accessing the field
// with a symbolic reference
}
}
Any command-line input or output is written as follows:
javac Animal.java javap -verbose Animal
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: “It’s worth mentioning that alternatives such as InstantOn from Open Liberty also exist”
Tips or important notes
Appear like this.
